Part #: LSD 182 L2. Cusco's high - performance limited slip differentials offer amazing benefits. When turning, the inner driven wheel often has less weight and can spin freely, which stops you from using power effectively and may upset the car. With an LSD, it forces the other wheel to spin at the same speed, maximizing traction when powering out. During acceleration, a stock LSD might be too weak to lock both wheels, letting one spin. Cusco's LSDs firmly lock both wheels, keeping the car stable while delivering full power. Cusco provides two types of LSDs. The Type - RS uses springs to absorb some initial torque on the LSD, resulting in a smoother engagement, fewer transitions, less chatter, longer lifespan, and reduced oil change frequency. The Type - MZ has no springs and engages more forcefully than the RS. You can adjust its sensitivity by changing the number of clutch plates, making it a cost - effective option. The 2 - Way LSD is perfect for RWD cars and AWD rear axles, ideal for high - speed track use and drifting. It activates during both acceleration and deceleration, which is great for drifters as it behaves consistently regardless of throttle input and keeps the wheels spinning through corners. However, be careful as sudden throttle release can unsettle the car. Important Notes: Contact us for any questions about the differentials. If you can't find the differential setup you want, reach out to us. The differential settings can only be changed during an overhaul after disassembly.


Using your Cusco Rear Type - RS 2 - Way Limited Slip Differential is straightforward. It's designed to work seamlessly with your Subaru STI from 2004 - 2014. When driving, you'll notice better traction, especially when turning or accelerating. For high - speed track use or drifting, the 2 - Way feature gives you great control. Just remember, when you're in a drift and need to lift off the throttle, do it gradually to avoid unsettling the car. As for maintenance, keep an eye on the oil change frequency. Since the Type - RS has springs that help reduce wear, you won't need to change the oil as often as with some other differentials. If you have any questions about how the differential works or if you want to change its settings, don't try to do it on your own. The settings can only be adjusted during an overhaul after disassembly. So, if you think you need a setting change, contact us. And if you're not sure which differential setup is best for your driving style, we're here to help too.