{"product_id":"tomei-technical-trax-advance-1-5-way-lsd-2013-2016-scion-fr-s-2013-2020-subaru-brz-toyota-86-gt86","title":"TOMEI Technical Trax Advance 1.5-Way LSD – 2013-2016 Scion FR-S \/ 2013-2020 Subaru BRZ \/ Toyota 86 \u0026 GT86","description":"\u003cp\u003eThe \u003cstrong\u003eTOMEI Technical Trax Advance 1.5-Way LSD\u003c\/strong\u003e is a clutch-type limited slip differential designed to improve traction, stability, and driver control in the Toyota 86, Scion FR-S, and Subaru BRZ platform. Built around TOMEI’s \u003cstrong\u003eAdvance Disc\u003c\/strong\u003e technology, this LSD offers smoother operation, improved transmission efficiency, and more predictable behavior on and off throttle.\u003c\/p\u003e\n\n  \u003cp\u003eCompared to more aggressive 2-way differentials, a \u003cstrong\u003e1.5-way LSD\u003c\/strong\u003e offers strong lock under acceleration with reduced locking effect on deceleration, making it a great choice for spirited street driving, autocross, track days, and drivers who want added traction without overly aggressive corner-entry behavior.\u003c\/p\u003e\n\n  \u003ch3\u003eKey Features\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003e1.5-Way Operation:\u003c\/strong\u003e Strong locking action under acceleration with milder lock on deceleration for a more balanced driving feel.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eClutch-Type LSD:\u003c\/strong\u003e Uses multiple friction discs to generate consistent, predictable lockup.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAdvance Disc Technology:\u003c\/strong\u003e Designed for quieter operation, smoother engagement, and improved transmission efficiency.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eLarge Friction Surface Area:\u003c\/strong\u003e Maximizes torque transfer and traction for performance driving.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eUp to 24 Friction Discs:\u003c\/strong\u003e Helps deliver more uniform torque transmission and improved control.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDurable LSD Case:\u003c\/strong\u003e Designed to withstand high loads, high initial torque, and repeated severe driving conditions.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFactory Side Flange Compatibility:\u003c\/strong\u003e T-TRAX Advance design may allow use of original factory side flanges depending on application.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eWhy We Like It\u003c\/h3\u003e\n  \u003cp\u003eA proper LSD completely changes how the 86\/BRZ chassis puts power down. The TOMEI Technical Trax Advance 1.5-Way is especially appealing because it offers serious traction improvement while staying more street-friendly than a full 2-way setup. It is a great choice for drivers who want better corner exit grip, more predictable rear-end behavior, and improved confidence without making the car too aggressive during braking and turn-in.\u003c\/p\u003e\n\n  \u003ch3\u003eAdvance Disc Technology\u003c\/h3\u003e\n  \u003cp\u003eTOMEI’s Advance Disc design uses an improved friction surface finish to create smoother transitions when the LSD engages and disengages. This helps reduce the loud crackling or harsh chatter commonly associated with clutch-type LSDs, making the unit more comfortable for street-driven cars while still delivering performance-focused lockup.\u003c\/p\u003e\n\n  \u003ch3\u003e1.5-Way LSD Behavior\u003c\/h3\u003e\n  \u003cp\u003eA 1.5-way LSD locks strongly under acceleration and provides a reduced locking effect under deceleration. This makes it easier to put power down on corner exit while keeping the car more manageable and stable during braking and corner entry compared to a more aggressive 2-way differential.\u003c\/p\u003e\n\n  \u003ch3\u003eConfirmed Fitment\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eScion FR-S\u003c\/li\u003e\n    \u003cli\u003eToyota 86 \/ GT86\u003c\/li\u003e\n    \u003cli\u003eSubaru BRZ\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eSpecifications\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e TOMEI\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eProduct:\u003c\/strong\u003e Technical Trax Advance LSD\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eModel \/ Code:\u003c\/strong\u003e TG1\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDifferential Type:\u003c\/strong\u003e Clutch-type limited slip differential\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e 1.5-way\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Toyota\/Subaru 86 \/ FR-S \/ BRZ\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eUse Case:\u003c\/strong\u003e Street, autocross, track, spirited driving\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eOil \u0026amp; Break-In Notes\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eKit includes \u003cstrong\u003e2 liters of TOMEI Hypoid Gear LSD Oil\u003c\/strong\u003e (GL-5 80W-90).\u003c\/li\u003e\n    \u003cli\u003eTOMEI Technical Trax LSD oil must be used with this LSD unit.\u003c\/li\u003e\n    \u003cli\u003eUsing another brand or grade of oil may increase chatter and wear.\u003c\/li\u003e\n    \u003cli\u003eAfter initial break-in, the LSD may require inspection or adjustment depending on vehicle use and oil condition.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eProfessional installation is strongly recommended.\u003c\/li\u003e\n    \u003cli\u003eProper backlash, preload, contact pattern, and break-in procedure are critical.\u003c\/li\u003e\n    \u003cli\u003eSome LSD chatter is normal with clutch-type limited slip differentials.\u003c\/li\u003e\n    \u003cli\u003ePractice in a safe environment after installation to get used to the new differential behavior.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eWhat’s in the Box\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e(1) TOMEI Technical Trax Advance 1.5-Way LSD unit\u003c\/li\u003e\n    \u003cli\u003e2 liters of TOMEI Hypoid Gear LSD Oil (GL-5 80W-90)\u003c\/li\u003e\n    \u003cli\u003eIncluded components per TOMEI kit contents\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eCompatibility \u0026amp; Disclaimers\u003c\/h3\u003e\n  \u003cp\u003eDesigned for compatible Toyota 86, Scion FR-S, and Subaru BRZ applications. Clutch-type LSDs may introduce additional noise, chatter, or driveline feedback depending on setup, oil choice, break-in, and driving conditions. Always verify final fitment and installation requirements before purchase.\u003c\/p\u003e","brand":"Tomei","offers":[{"title":"Default Title","offer_id":48411064762616,"sku":"TC101B-TYTG1","price":990.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3457\/9704\/files\/Screenshot_2026-05-17_at_10.09.47_PM.png?v=1779073796","url":"https:\/\/driven.media\/products\/tomei-technical-trax-advance-1-5-way-lsd-2013-2016-scion-fr-s-2013-2020-subaru-brz-toyota-86-gt86","provider":"Driven.Media","version":"1.0","type":"link"}