{"title":"DiffWorks - BMW","description":null,"products":[{"product_id":"bmw-e30-os-giken-lsd","title":"BMW E30 Medium Case 325i M3 OS Giken LSD Spec S 1.5 Way","description":"\u003ch1\u003e\u003cspan data-sheets-value='{\"1\":2,\"2\":\"The Grand Touring Clutch is our latest development to our clutch lineup. The GT2CD clutch utilizes dampened hub clutch discs for added drivetrain protection for those high horsepower builds. We combine our race technology in addition of our unique floating pressure system to provide a smooth and chatter-free driving experience. This is ideal for those customers looking for a higher capacity clutch for their showcase vehicle to take it to and from their local concourse gatherings.  ****For pure motorsports use or dual purpose vehicles, we recommend starting with our STR clutch lineup.**** \"}' data-sheets-userformat='{\"2\":14851,\"3\":{\"1\":0},\"4\":[null,2,16777215],\"12\":0,\"14\":[null,2,3355443],\"15\":\"Roboto, \\\"Helvetica Neue\\\", Helvetica, Arial, sans-serif\",\"16\":12}'\u003eDescription\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp\u003eThe OS Giken Super Lock LSD uses our patented pressure ring design that allows for smooth, progressive locking. This design is a spline-through-side-gear design that allows for fitment of more friction plates (up to 2x as many as competitors versions).\u003cspan\u003e \u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAll components are chemically heat treated for maximum durability\u003c\/li\u003e\n\u003cli\u003eAll components are constructed from a high-grade steel alloy\u003c\/li\u003e\n\u003cli\u003eGears are raw-forged for maximum strength\u003c\/li\u003e\n\u003cli\u003eClutch disks are precision-machined simultaneously on both sides to extremely tight tolerances resulting in minimal warpage.\u003c\/li\u003e\n\u003cli\u003eLSD case is machined from a single billet piece to ensure uniformity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe OS LSD standard spec allows for low preload while still retaining a fully progressive 100% lock capability. Operation is quiet and the progressive locking allows for smooth predictable locking. When replacing an open diff, equipping an OS LSD will completely improve the driving experience while maintaining everyday drivability.\u003c\/p\u003e\n\u003ch1\u003eTunability\u003c\/h1\u003e\n\u003cp\u003eIf your application is making significantly more power, we offer additional tuning services to your new\/used LSD in-house. More power typically means more kick to the differential. We have the ability to speed up or slow down differential action to allow the vehicle to achieve maximum traction.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInitial torque can be adjusted by using thicker \/ thinner cone springs\u003c\/li\u003e\n\u003cli\u003eLock progression timing can be adjusted by using stiffer \/ weaker pressure ring springs, allowing the progression of full lock to be fine-tuned to the vehicle\/driver\u003c\/li\u003e\n\u003cli\u003eRamp angles can be customized by swapping the pressure ring and iron cross for even more tuning possibilities\u003c\/li\u003e\n\u003cli\u003eTCD spec disks can be installed for increased oil cooling and even smoother operation\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OS Giken","offers":[{"title":"1.5 Way","offer_id":41519649095767,"sku":"","price":2400.0,"currency_code":"AUD","in_stock":true},{"title":"2 Way","offer_id":41519649128535,"sku":"","price":2600.0,"currency_code":"AUD","in_stock":true},{"title":"1.5 Way TCD","offer_id":41519649161303,"sku":"","price":3500.0,"currency_code":"AUD","in_stock":true},{"title":"2 Way TCD","offer_id":41519649194071,"sku":"","price":3600.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0619\/8771\/7207\/files\/LSD_RWD_4f425097-fc98-46bf-bf02-94e0c7a4c2ae.webp?v=1738589443"},{"product_id":"bmw-e36-medium-case-os-giken-lsd","title":"BMW E36 Medium Case 325i 328i M3 OS Giken LSD Spec S 1.5 Way","description":"\u003ch1\u003e\u003cspan data-sheets-value='{\"1\":2,\"2\":\"The Grand Touring Clutch is our latest development to our clutch lineup. The GT2CD clutch utilizes dampened hub clutch discs for added drivetrain protection for those high horsepower builds. We combine our race technology in addition of our unique floating pressure system to provide a smooth and chatter-free driving experience. This is ideal for those customers looking for a higher capacity clutch for their showcase vehicle to take it to and from their local concourse gatherings.  ****For pure motorsports use or dual purpose vehicles, we recommend starting with our STR clutch lineup.**** \"}' data-sheets-userformat='{\"2\":14851,\"3\":{\"1\":0},\"4\":[null,2,16777215],\"12\":0,\"14\":[null,2,3355443],\"15\":\"Roboto, \\\"Helvetica Neue\\\", Helvetica, Arial, sans-serif\",\"16\":12}'\u003eDescription\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp\u003eThe OS Giken Super Lock LSD uses our patented pressure ring design that allows for smooth, progressive locking. This design is a spline-through-side-gear design that allows for fitment of more friction plates (up to 2x as many as competitors versions).\u003cspan\u003e \u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAll components are chemically heat treated for maximum durability\u003c\/li\u003e\n\u003cli\u003eAll components are constructed from a high-grade steel alloy\u003c\/li\u003e\n\u003cli\u003eGears are raw-forged for maximum strength\u003c\/li\u003e\n\u003cli\u003eClutch disks are precision-machined simultaneously on both sides to extremely tight tolerances resulting in minimal warpage.\u003c\/li\u003e\n\u003cli\u003eLSD case is machined from a single billet piece to ensure uniformity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe OS LSD standard spec allows for low preload while still retaining a fully progressive 100% lock capability. Operation is quiet and the progressive locking allows for smooth predictable locking. When replacing an open diff, equipping an OS LSD will completely improve the driving experience while maintaining everyday drivability.\u003c\/p\u003e\n\u003ch1\u003eTunability\u003c\/h1\u003e\n\u003cp\u003eIf your application is making significantly more power, we offer additional tuning services to your new\/used LSD in-house. More power typically means more kick to the differential. We have the ability to speed up or slow down differential action to allow the vehicle to achieve maximum traction.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInitial torque can be adjusted by using thicker \/ thinner cone springs\u003c\/li\u003e\n\u003cli\u003eLock progression timing can be adjusted by using stiffer \/ weaker pressure ring springs, allowing the progression of full lock to be fine-tuned to the vehicle\/driver\u003c\/li\u003e\n\u003cli\u003eRamp angles can be customized by swapping the pressure ring and iron cross for even more tuning possibilities\u003c\/li\u003e\n\u003cli\u003eTCD spec disks can be installed for increased oil cooling and even smoother operation\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OS Giken","offers":[{"title":"1.5 Way","offer_id":41519649259607,"sku":null,"price":2400.0,"currency_code":"AUD","in_stock":true},{"title":"2 Way","offer_id":41519649292375,"sku":null,"price":2600.0,"currency_code":"AUD","in_stock":true},{"title":"1.5 Way TCD","offer_id":41519649325143,"sku":null,"price":3500.0,"currency_code":"AUD","in_stock":true},{"title":"2 Way TCD","offer_id":41519649357911,"sku":null,"price":3600.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0619\/8771\/7207\/files\/LSD_RWD_4f425097-fc98-46bf-bf02-94e0c7a4c2ae.webp?v=1738589443"},{"product_id":"bmw-e87-130i-lsd-os-giken","title":"BMW E87 130i LSD - OS Giken Spec S 1.5 Way","description":"","brand":"KirksWorks Race Service","offers":[{"title":"Default Title","offer_id":41519650406487,"sku":"","price":2400.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0619\/8771\/7207\/files\/LSD_RWD_a62dffd4-867e-4a69-82d0-2d685104a88b.webp?v=1741602129"},{"product_id":"bmw-e46-medium-case-lsd-325i-328i-330i-os-giken","title":"BMW E46 Medium Case LSD 325i 328i 330i - OS Giken Spec S 1.5 Way","description":"","brand":"KirksWorks Race Service","offers":[{"title":"Default Title","offer_id":41519650472023,"sku":"","price":2400.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0619\/8771\/7207\/files\/LSD_RWD_f3bb8823-7c20-40e6-ab94-ef623585596b.webp?v=1741602102"},{"product_id":"bmw-f82-f87-f80-lsd-upgrade-os-giken","title":"BMW F82 F87 F80 LSD Upgrade - OS Giken Spec S 1.5 Way","description":"\u003ch3 data-start=\"148\" data-end=\"194\"\u003e\u003cstrong data-start=\"152\" data-end=\"194\"\u003eOS Giken Super Lock LSD for BMW F80 M3\/ F87 M2\/ F82 M4\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"196\" data-end=\"437\"\u003e\u003cstrong data-start=\"196\" data-end=\"208\"\u003eOverview\u003c\/strong\u003e\u003cbr data-start=\"208\" data-end=\"211\"\u003eUpgrade your F8X drivetrain with the \u003cstrong data-start=\"251\" data-end=\"306\"\u003eOS Giken Super Lock Limited-Slip Differential (LSD)\u003c\/strong\u003e—a purpose-built, racing-grade diff designed to deliver unwavering traction, smoother performance, and aggressive gearing response.\u003c\/p\u003e\n\u003cp data-start=\"439\" data-end=\"466\"\u003e\u003cstrong data-start=\"439\" data-end=\"466\"\u003eKey Features \u0026amp; Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"467\" data-end=\"1379\"\u003e\n\u003cli data-start=\"467\" data-end=\"631\"\u003e\n\u003cp data-start=\"469\" data-end=\"631\"\u003e\u003cstrong data-start=\"469\" data-end=\"497\"\u003e100% progressive locking\u003c\/strong\u003e ensures maximum power is transmitted efficiently to the road while maintaining smooth operation.\u003cspan class=\"\" data-state=\"closed\"\u003e\u003cspan class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"632\" data-end=\"828\"\u003e\n\u003cp data-start=\"634\" data-end=\"828\"\u003e\u003cstrong data-start=\"634\" data-end=\"653\"\u003eAdvanced design\u003c\/strong\u003e includes up to 28 friction plates and a patented lock timing system, delivering enhanced locking force, heat dissipation, and durability.\u003cspan class=\"\" data-state=\"closed\"\u003e\u003cspan class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"829\" data-end=\"1003\"\u003e\n\u003cp data-start=\"831\" data-end=\"1003\"\u003e\u003cstrong data-start=\"831\" data-end=\"864\"\u003eQuiet and seamless engagement\u003c\/strong\u003e, offering both race-capable restraint and street-level refinement—no chattering or harsh transitions.\u003cspan class=\"\" data-state=\"closed\"\u003e\u003cspan class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1004\" data-end=\"1190\"\u003e\n\u003cp data-start=\"1006\" data-end=\"1190\"\u003e\u003cstrong data-start=\"1006\" data-end=\"1039\"\u003eExtremely rugged construction\u003c\/strong\u003e, featuring high-grade steel, precision machining, and forged internals, with absolutely \u003cstrong data-start=\"1128\" data-end=\"1152\"\u003eno break-in required\u003c\/strong\u003e.\u003cspan class=\"\" data-state=\"closed\"\u003e\u003cspan class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1191\" data-end=\"1379\"\u003e\n\u003cp data-start=\"1193\" data-end=\"1379\"\u003e\u003cstrong data-start=\"1193\" data-end=\"1210\"\u003eFully tunable\u003c\/strong\u003e—adjust preload, lock timing, and ramp angles to match your driving style, from daily-driven street cars to full-blown track setups.\u003cspan class=\"\" data-state=\"closed\"\u003e\u003cspan class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1381\" data-end=\"1392\"\u003e\u003cstrong data-start=\"1381\" data-end=\"1392\"\u003eFitment\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1393\" data-end=\"1733\"\u003e\n\u003cli data-start=\"1393\" data-end=\"1565\"\u003e\n\u003cp data-start=\"1395\" data-end=\"1565\"\u003eCompatible with the \u003cstrong data-start=\"1415\" data-end=\"1475\"\u003eBMW F80 M3, as well as other F8X models (F82 M4, F87 M2)\u003c\/strong\u003e, replacing the electronically controlled stock diff\u003cspan class=\"\" data-state=\"closed\"\u003e\u003cspan class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1566\" data-end=\"1733\"\u003e\n\u003cp data-start=\"1568\" data-end=\"1733\"\u003eInstallation requires professional service—this is a “chunk” replacement and retains your original ring \u0026amp; pinion gear.\u003cspan class=\"\" data-state=\"closed\"\u003e\u003cspan class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1735\" data-end=\"2151\"\u003e\u003cstrong data-start=\"1735\" data-end=\"1772\"\u003eWhy Choose OS Giken for Your F8X?\u003c\/strong\u003e\u003cbr\u003eThis is not a mere upgrade of OEM hardware—\u003cstrong data-start=\"1816\" data-end=\"1865\"\u003eit’s a full re-engineering from the ground up\u003c\/strong\u003e, built for motorsport performance with real-world reliability. Whether you're after better track lap times, smoother drift transitions, or refined street performance, the OS Giken is a significant leap forward over stock or Quaife-style diff units.\u003c\/p\u003e\n\u003cp data-start=\"1735\" data-end=\"2151\"\u003e \u003c\/p\u003e\n\u003cp data-start=\"1735\" data-end=\"2151\"\u003e\u003cstrong\u003ePlease talk to us about installation into your diff housing. Core exchange units available!\u003c\/strong\u003e\u003c\/p\u003e","brand":"OS Giken","offers":[{"title":"Default Title","offer_id":41519650668631,"sku":"","price":2600.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0619\/8771\/7207\/files\/LSD_RWD_382c9ba0-cf14-4550-b4c2-029bc5bdd7c1.webp?v=1741602073"},{"product_id":"bmw-e30-e36-m3-325i-328i-lsd-1-5-way-kaaz-japan","title":"BMW E30 E36 M3 325i 328i LSD 1.5 way - KAAZ Japan","description":"\u003ch3 data-start=\"158\" data-end=\"220\"\u003eKAAZ 1.5-Way (and SuperQ option) LSD for BMW E30 (188 mm)\u003c\/h3\u003e\n\u003cp data-start=\"222\" data-end=\"659\"\u003e\u003cstrong data-start=\"222\" data-end=\"237\"\u003eDescription\u003c\/strong\u003e\u003cbr data-start=\"237\" data-end=\"240\"\u003eElevate your BMW E30’s traction and handling with the high-performance KAAZ Limited-Slip Differential, specifically engineered for the 188 mm open differential found in E30 models. The clutch-type design engages under acceleration to ensure both rear wheels transmit power efficiently, while offering a gentler lock-up upon deceleration—perfect for balanced road and track driving.\u003c\/p\u003e\n\u003cp data-start=\"661\" data-end=\"685\"\u003e\u003cstrong data-start=\"661\" data-end=\"685\"\u003eWhy Choose KAAZ LSD?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"686\" data-end=\"1418\"\u003e\n\u003cli data-start=\"686\" data-end=\"826\"\u003e\n\u003cp data-start=\"688\" data-end=\"826\"\u003e\u003cstrong data-start=\"688\" data-end=\"717\"\u003eFast, reliable engagement\u003c\/strong\u003e even under minimal torque—great for precision motorsport applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"827\" data-end=\"1025\"\u003e\n\u003cp data-start=\"829\" data-end=\"1025\"\u003e\u003cstrong data-start=\"829\" data-end=\"851\"\u003eMaximized traction\u003c\/strong\u003e thanks to a larger number of friction plates, preserving grip and minimizing wear through higher abrasive efficiency and heat capacity \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1026\" data-end=\"1253\"\u003e\n\u003cp data-start=\"1028\" data-end=\"1253\"\u003e\u003cstrong data-start=\"1028\" data-end=\"1069\"\u003eSuperQ (WPC-treated) option available\u003c\/strong\u003e, featuring specialized surface treatment for smoother, quieter operation, improved heat resistance, and extended durability—no break-in required \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1254\" data-end=\"1415\"\u003e\n\u003cp data-start=\"1256\" data-end=\"1415\"\u003e\u003cstrong data-start=\"1256\" data-end=\"1298\"\u003eConstructed for strength and longevity\u003c\/strong\u003e, with reinforced internal components to handle the rigors of spirited driving \u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1419\" data-end=\"1447\"\u003e\u003cstrong data-start=\"1419\" data-end=\"1447\"\u003eFitment \u0026amp; Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1448\" data-end=\"2044\"\u003e\n\u003cli data-start=\"1448\" data-end=\"1565\"\u003e\n\u003cp data-start=\"1450\" data-end=\"1565\"\u003e\u003cstrong data-start=\"1450\" data-end=\"1461\"\u003eFitment\u003c\/strong\u003e: BMW E30 with 188 mm open differential (e.g., 325i, M3, 318is) \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1566\" data-end=\"1886\"\u003e\n\u003cp data-start=\"1568\" data-end=\"1582\"\u003e\u003cstrong data-start=\"1568\" data-end=\"1579\"\u003eOptions\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul data-start=\"1585\" data-end=\"1886\"\u003e\n\u003cli data-start=\"1585\" data-end=\"1716\"\u003e\n\u003cp data-start=\"1587\" data-end=\"1716\"\u003e\u003cstrong data-start=\"1587\" data-end=\"1602\"\u003e1.5-Way LSD\u003c\/strong\u003e – ideal for road and track driving, offering asymmetric lock-up (strong on acceleration, mild on deceleration).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1719\" data-end=\"1886\"\u003e\n\u003cp data-start=\"1721\" data-end=\"1886\"\u003e\u003cstrong data-start=\"1721\" data-end=\"1739\"\u003eSuperQ variant\u003c\/strong\u003e – enhanced with WPC treatment for a smoother, quieter experience with superior performance and durability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1887\" data-end=\"2044\"\u003e\n\u003cp data-start=\"1889\" data-end=\"2044\"\u003e\u003cstrong data-start=\"1889\" data-end=\"1907\"\u003eUpgrade impact\u003c\/strong\u003e: Improves power delivery, reduces wheel slip, enhances cornering stability, and offers long-term reliability under demanding conditions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2046\" data-end=\"2049\"\u003e\n\u003cp data-start=\"2051\" data-end=\"2082\"\u003e\u003cstrong data-start=\"2051\" data-end=\"2082\"\u003eSEO-Optimised Short Version\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"2084\" data-end=\"2380\"\u003e\u003cstrong data-start=\"2084\" data-end=\"2135\"\u003eKAAZ 1.5-Way LSD for BMW E30 (188 mm Open Diff)\u003c\/strong\u003e – Upgrade your E30’s traction and precision with this durable, performance-oriented limited-slip differential. Featuring enhanced clutch plate design and optional SuperQ (WPC-treated) finish for quieter, smoother engagement and longer lifespan.\u003c\/p\u003e","brand":"KAAZ","offers":[{"title":"Default Title","offer_id":41594910507095,"sku":"","price":2300.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0619\/8771\/7207\/files\/productImage_LSD-universal_1200x1200_a5086e3b-7205-4b96-8c84-2a3a28f1bdd9.webp?v=1741601815"},{"product_id":"bmw-e46-m3-lsd-os-giken","title":"BMW E46 M3 LSD OS Giken Spec S 1.5 Way","description":"\u003cp\u003eThe OS Giken Super Lock LSD uses our patented pressure ring design that allows for smooth, progressive locking. This design is a spline-through-side-gear design that allows for fitment of more friction plates (up to 2x as many as competitors versions).\u003cspan\u003e \u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAll components are chemically heat treated for maximum durability\u003c\/li\u003e\n\u003cli\u003eAll components are constructed from a high-grade steel alloy\u003c\/li\u003e\n\u003cli\u003eGears are raw-forged for maximum strength\u003c\/li\u003e\n\u003cli\u003eClutch disks are precision-machined simultaneously on both sides to extremely tight tolerances resulting in minimal warpage.\u003c\/li\u003e\n\u003cli\u003eLSD case is machined from a single billet piece to ensure uniformity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe OS LSD standard spec allows for low preload while still retaining a fully progressive 100% lock capability. Operation is quiet and the progressive locking allows for smooth predictable locking. When replacing an open diff, equipping an OS LSD will completely improve the driving experience while maintaining everyday drivability.\u003c\/p\u003e\n\u003ch1\u003eTunability\u003c\/h1\u003e\n\u003cp\u003eIf your application is making significantly more power, we offer additional tuning services to your new\/used LSD in-house. More power typically means more kick to the differential. We have the ability to speed up or slow down differential action to allow the vehicle to achieve maximum traction.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInitial torque can be adjusted by using thicker \/ thinner cone springs\u003c\/li\u003e\n\u003cli\u003eLock progression timing can be adjusted by using stiffer \/ weaker pressure ring springs, allowing the progression of full lock to be fine-tuned to the vehicle\/driver\u003c\/li\u003e\n\u003cli\u003eRamp angles can be customized by swapping the pressure ring and iron cross for even more tuning possibilities\u003c\/li\u003e\n\u003cli\u003eTCD spec disks can be installed for increased oil cooling and even smoother operation\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OS Giken","offers":[{"title":"Default Title","offer_id":43892550893655,"sku":null,"price":2400.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0619\/8771\/7207\/files\/LSD_RWD_e90acbf3-d7f4-4a8d-8872-1c99c9f75763.webp?v=1741602086"},{"product_id":"bmw-e90-e92-m3-lsd-os-giken","title":"BMW E90 E92 M3 LSD OS Giken Spec S 1.5 Way","description":"\u003cp\u003eThe OS Giken Super Lock LSD uses our patented pressure ring design that allows for smooth, progressive locking. This design is a spline-through-side-gear design that allows for fitment of more friction plates (up to 2x as many as competitors versions).\u003cspan\u003e \u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAll components are chemically heat treated for maximum durability\u003c\/li\u003e\n\u003cli\u003eAll components are constructed from a high-grade steel alloy\u003c\/li\u003e\n\u003cli\u003eGears are raw-forged for maximum strength\u003c\/li\u003e\n\u003cli\u003eClutch disks are precision-machined simultaneously on both sides to extremely tight tolerances resulting in minimal warpage.\u003c\/li\u003e\n\u003cli\u003eLSD case is machined from a single billet piece to ensure uniformity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe OS LSD standard spec allows for low preload while still retaining a fully progressive 100% lock capability. Operation is quiet and the progressive locking allows for smooth predictable locking. When replacing an open diff, equipping an OS LSD will completely improve the driving experience while maintaining everyday drivability.\u003c\/p\u003e\n\u003ch1\u003eTunability\u003c\/h1\u003e\n\u003cp\u003eIf your application is making significantly more power, we offer additional tuning services to your new\/used LSD in-house. More power typically means more kick to the differential. We have the ability to speed up or slow down differential action to allow the vehicle to achieve maximum traction.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInitial torque can be adjusted by using thicker \/ thinner cone springs\u003c\/li\u003e\n\u003cli\u003eLock progression timing can be adjusted by using stiffer \/ weaker pressure ring springs, allowing the progression of full lock to be fine-tuned to the vehicle\/driver\u003c\/li\u003e\n\u003cli\u003eRamp angles can be customized by swapping the pressure ring and iron cross for even more tuning possibilities\u003c\/li\u003e\n\u003cli\u003eTCD spec disks can be installed for increased oil cooling and even smoother operation\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OS Giken","offers":[{"title":"Default Title","offer_id":43892551024727,"sku":null,"price":2400.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0619\/8771\/7207\/files\/LSD_RWD_e90acbf3-d7f4-4a8d-8872-1c99c9f75763.webp?v=1741602086"},{"product_id":"bmw-m140i-m240i-m135i-m235i-f20-f22-os-giken-lsd","title":"BMW M140i M240i M135i M235i F20 F22 - OS Giken LSD Spec S 1.5 Way","description":"","brand":"OS Giken","offers":[{"title":"Default Title","offer_id":43910342344791,"sku":null,"price":2400.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0619\/8771\/7207\/files\/LSD_RWD_f3bb8823-7c20-40e6-ab94-ef623585596b.webp?v=1741602102"},{"product_id":"bmw-e30-e36-m3-325i-328i-lsd-1-5-way-kaaz-japan-used","title":"BMW E30 E36 M3 325i 328i LSD 1.5 way - KAAZ Japan (Used)","description":"\u003ch3 data-start=\"158\" data-end=\"220\"\u003eKAAZ 1.5-Way (and SuperQ option) LSD for BMW E30 (188 mm)\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003cbr\u003eUsed unit, in good working order.\u003c\/p\u003e\n\u003cp data-start=\"222\" data-end=\"659\"\u003e\u003cstrong data-start=\"222\" data-end=\"237\"\u003eDescription\u003c\/strong\u003e\u003cbr data-start=\"237\" data-end=\"240\"\u003eElevate your BMW E30’s traction and handling with the high-performance KAAZ Limited-Slip Differential, specifically engineered for the 188 mm open differential found in E30 models. The clutch-type design engages under acceleration to ensure both rear wheels transmit power efficiently, while offering a gentler lock-up upon deceleration—perfect for balanced road and track driving.\u003c\/p\u003e\n\u003cp data-start=\"661\" data-end=\"685\"\u003e\u003cstrong data-start=\"661\" data-end=\"685\"\u003eWhy Choose KAAZ LSD?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"686\" data-end=\"1418\"\u003e\n\u003cli data-start=\"686\" data-end=\"826\"\u003e\n\u003cp data-start=\"688\" data-end=\"826\"\u003e\u003cstrong data-start=\"688\" data-end=\"717\"\u003eFast, reliable engagement\u003c\/strong\u003e even under minimal torque—great for precision motorsport applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"827\" data-end=\"1025\"\u003e\n\u003cp data-start=\"829\" data-end=\"1025\"\u003e\u003cstrong data-start=\"829\" data-end=\"851\"\u003eMaximized traction\u003c\/strong\u003e thanks to a larger number of friction plates, preserving grip and minimizing wear through higher abrasive efficiency and heat capacity \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1026\" data-end=\"1253\"\u003e\n\u003cp data-start=\"1028\" data-end=\"1253\"\u003e\u003cstrong data-start=\"1028\" data-end=\"1069\"\u003eSuperQ (WPC-treated) option available\u003c\/strong\u003e, featuring specialized surface treatment for smoother, quieter operation, improved heat resistance, and extended durability—no break-in required \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1254\" data-end=\"1415\"\u003e\n\u003cp data-start=\"1256\" data-end=\"1415\"\u003e\u003cstrong data-start=\"1256\" data-end=\"1298\"\u003eConstructed for strength and longevity\u003c\/strong\u003e, with reinforced internal components to handle the rigors of spirited driving \u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1419\" data-end=\"1447\"\u003e\u003cstrong data-start=\"1419\" data-end=\"1447\"\u003eFitment \u0026amp; Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1448\" data-end=\"2044\"\u003e\n\u003cli data-start=\"1448\" data-end=\"1565\"\u003e\n\u003cp data-start=\"1450\" data-end=\"1565\"\u003e\u003cstrong data-start=\"1450\" data-end=\"1461\"\u003eFitment\u003c\/strong\u003e: BMW E30 with 188 mm open differential (e.g., 325i, M3, 318is) \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1566\" data-end=\"1886\"\u003e\n\u003cp data-start=\"1568\" data-end=\"1582\"\u003e\u003cstrong data-start=\"1568\" data-end=\"1579\"\u003eOptions\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul data-start=\"1585\" data-end=\"1886\"\u003e\n\u003cli data-start=\"1585\" data-end=\"1716\"\u003e\n\u003cp data-start=\"1587\" data-end=\"1716\"\u003e\u003cstrong data-start=\"1587\" data-end=\"1602\"\u003e1.5-Way LSD\u003c\/strong\u003e – ideal for road and track driving, offering asymmetric lock-up (strong on acceleration, mild on deceleration).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1719\" data-end=\"1886\"\u003e\n\u003cp data-start=\"1721\" data-end=\"1886\"\u003e\u003cstrong data-start=\"1721\" data-end=\"1739\"\u003eSuperQ variant\u003c\/strong\u003e – enhanced with WPC treatment for a smoother, quieter experience with superior performance and durability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1887\" data-end=\"2044\"\u003e\n\u003cp data-start=\"1889\" data-end=\"2044\"\u003e\u003cstrong data-start=\"1889\" data-end=\"1907\"\u003eUpgrade impact\u003c\/strong\u003e: Improves power delivery, reduces wheel slip, enhances cornering stability, and offers long-term reliability under demanding conditions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2046\" data-end=\"2049\"\u003e\n\u003cp data-start=\"2051\" data-end=\"2082\"\u003e\u003cstrong data-start=\"2051\" data-end=\"2082\"\u003eSEO-Optimised Short Version\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"2084\" data-end=\"2380\"\u003e\u003cstrong data-start=\"2084\" data-end=\"2135\"\u003eKAAZ 1.5-Way LSD for BMW E30 (188 mm Open Diff)\u003c\/strong\u003e – Upgrade your E30’s traction and precision with this durable, performance-oriented limited-slip differential. Featuring enhanced clutch plate design and optional SuperQ (WPC-treated) finish for quieter, smoother engagement and longer lifespan.\u003c\/p\u003e","brand":"KAAZ","offers":[{"title":"Default Title","offer_id":44054942613591,"sku":null,"price":1500.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0619\/8771\/7207\/files\/e30_kaaz_used_1.jpg?v=1784556621"}],"url":"https:\/\/kirksworks.au\/collections\/diffworks-bmw.oembed","provider":"KirksWorks Race Service","version":"1.0","type":"link"}