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2015 Subaru WRX Cusco Limited Slip Differentials

Cusco's performance limited slip differentials can help in a number of ways. During turning, the inner driven wheel experiences less weight and can spin freely preventing you from putting the power down while upsetting the car. An LSD will force the other wheel to spin at the same rate, maximizing traction on power out. During acceleration, a stock LSD can often be too weak to lock both wheels allowing one to spin. Cusco's LSDs will keep both wheels locked firmly in place to keep the car planted while putting down all your power. Cusco offers two different types of LSDs. The Type-RS uses springs to absorb some of the initial torque application on the LSD. This makes for a gentler engagement and smoother transitions. Chatter is kept to a minimum and life is extended. Oil change frequency is also reduced. The Type-MZ does not have springs and engages harder than the RS. By switching the number of clutch plates in the unit, the sensitivity can be set. This would be the cost effective choice.

 

1 Way - Ideal for FWD and AWD front axles. Activates under acceleration and not on deceleration. When off the throttle, it acts like an open diff allowing for maximum traction in turning and braking. During power on, the LSD engages again ensuring full power is put down.

2 Way - Ideal for RWD cars and AWD rear axles. Ideal for high speed track use and drifting. Activates on both acceleration and deceleration. This is preferable for drifters as the LSD behaves the same regardless of erratic throttle input, and lets you keep the wheels spinning all the way through a corner. Some caution is required as suddenly lifting can unsettle the car.

1.5 Way - Activates under acceleration but not as much during deceleration. Typically the 1.5 way differential is suitable for all types of motorsports driving. With optimized performance during acceleration it carries a lighter lockup on deceleration which is best suited for traditional road racers. Despite the fact that 1.5 way units have slighter lock up on deceleration, many users may still use this cam type for aggressive motorsports such like drifting or low gear auto crossing & gymkhana. FWD vehicles can experience increased stability during braking.


  • Important Notes:
  • Please contact us with any questions regarding the differentials
  • If there is a differential setup you want but do not see available below, please contact us
  • The settings of the differentials can be changed but ONLY during after dissassembly amidst an overhaul.
Rear Differential


Description Part # MSRP Price Inventory  
Type-RS - 1.5 Way (2 Way Requires Overhaul) LSD 183 L15 $1,386.00 $1,260.00 Ships from factory in 3+ weeks
OEM R160 Diff Bearing (2 Required) 806340080 $97.96 $81.63 Usually ships in 7-10 days
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1635 Bustleton Pike, Suite B, Feasterville, PA 19053
Tel: 215.489.2820
Hours:
Mon-Fri 8am-6pm

©2017 JSC Speed Inc.
All Rights Reserved.

1635 Bustleton Pike,
Suite B
Feasterville, PA
19053

Tel: 215.489.2820