{"product_id":"cusco-lsd-rs-rear-1-5way-ct9a-evo8-w-ayc-side-bearing-not-included","title":"Cusco LSD RS-Rear 1.5way CT9A EVO8 w\/AYC Side BEARing NOT inCLUDED","description":"\u003cp\u003eThe \u003cstrong\u003eCusco Type RS 1.5-Way Limited Slip Differential\u003c\/strong\u003e offers the perfect middle ground between aggressive performance and refined handling, making it a favorite among serious enthusiasts and competitive drivers alike. This LSD is designed to fully lock under acceleration, just like the 1-Way, but unlike the 1-Way, it also partially engages under deceleration. This dual behavior adds braking stability and rear-end control, which is especially useful in high-speed entries, chicanes, or heel-toe downshifting zones.\u003c\/p\u003e\n\n\u003cp\u003eWhat separates the 1.5-Way from both the 1-Way and 2-Way is its ability to provide deceleration locking only when needed — avoiding the full-on engagement of a 2-Way while still offering more control than the freewheeling nature of a 1-Way. It strikes a balance that improves turn-in response, maintains stability under trail braking, and reduces mid-corner understeer. This makes the 1.5-Way RS ideal for time attack cars, rear-wheel drive track builds, and high-performance street cars where balance and predictability are essential.\u003c\/p\u003e\n\n\u003cp\u003eThe RS series utilizes a low initial torque coil spring pre-load system, which creates smoother engagement and quicker response compared to traditional clutch-type differentials. With optimized ramp angles and oil-immersed clutch plates for heat dissipation, the RS LSD line is designed for long-lasting, consistent performance under repeated high-load conditions.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eLocks fully under acceleration; partial locking under deceleration (1.5-Way behavior)\u003c\/li\u003e\n  \u003cli\u003eEnhanced braking stability and corner entry control versus 1-Way\u003c\/li\u003e\n  \u003cli\u003eIdeal for high-performance AWD and RWD setups, time attack, and responsive track builds\u003c\/li\u003e\n  \u003cli\u003eRS coil spring pre-load system for smooth, consistent lockup\u003c\/li\u003e\n  \u003cli\u003eReduces lift-off oversteer while improving mid-corner balance\u003c\/li\u003e\n  \u003cli\u003eForged casing and rebuildable internals for long-term durability\u003c\/li\u003e\n  \u003cli\u003eSuperior thermal control through oil-immersed clutch packs\u003c\/li\u003e\n  \u003cli\u003eBalanced LSD behavior that adapts to both aggressive and technical driving\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eCompared to the 1-Way, the 1.5-Way provides greater control on corner entry and is better suited for aggressive trail braking. It’s more forgiving than a 2-Way on the street, yet delivers the kind of on-track control that serious drivers demand.\u003c\/p\u003e","brand":"Cusco","offers":[{"title":"Default Title","offer_id":50387692912933,"sku":"CUSLSD 448 L15","price":1332.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0759\/7706\/4741\/files\/cusco-lsd-type-rs_7b27b37d-7f10-4515-a2e4-b89e20215070.png?v=1746468529","url":"https:\/\/saikospeed.com\/products\/cusco-lsd-rs-rear-1-5way-ct9a-evo8-w-ayc-side-bearing-not-included","provider":"Saikospeed","version":"1.0","type":"link"}