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Cusco LSD Type-RS 1.5-Way (1&1.5 Way) Rear 15-24 Subaru WRX / 18-23 Crosstrek 6MT Only
Cusco LSD Type-RS 1.5-Way (1&1.5 Way) Rear 15-24 Subaru WRX / 18-23 Crosstrek 6MT Only
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Cusco LSD Type-RS 1.5-Way (1&1.5 Way) Rear 15-24 Subaru WRX / 18-23 Crosstrek 6MT Only

Cusco
CUSLSD 6A6 C15
Differentials
Out of stock
$ 1,580.00 $ 1,422.00

SKU: LSD 6A6 C15

Cusco LSD Type-RS 1.5-Way (1&amp.1.5 Way) Rear 15-24 Subaru WRX / 18-23 Crosstrek 6MT Only

Cusco LSD Type-RS 1.5-Way Rear Limited Slip Differential fits 2015-2024 Subaru WRX and 2018-2023 Crosstrek with 6-speed manual transmission. Coil spring pressure rings enable low initial torque for smooth cornering when unlocked yet quick clutch engagement under load. Drivers gain predictable traction distribution for autocross track days or street performance.

Key Features

  • 1.5-Way Clutch Lock: Full lock during acceleration one-way ramp partial lock deceleration 1.5-way ramp for straight-line stability and corner exit drive
  • Coil Spring Activation: Pressure applied same direction as initial torque allows lower setting smoother transition from open to locked state
  • Customizable Springs: RS springs inside pressure rings add or subtract for tuning initial torque to match driving style or track conditions
  • Quick Engagement: Smoother faster response than plate-type designs even low torque rating provides stable operation
  • 10 Clutch Plates: Durable pack handles high torque Subaru AWD rear differential demands

Product Notes

  • 6-speed manual transmission only automatic not compatible
  • Direct OEM rear differential replacement no housing modifications
  • Special order typically non-returnable unless defective

Installation Notes

  • Professional installation recommended.
  • Remove rear differential replace stock clutch pack with Cusco unit
  • Use OEM mounting hardware torque to factory specs

This Part Fits

Year Make Model Submodel
2015-2024 Subaru WRX 6MT Base Premium Limited GT TR
2018-2023 Subaru Crosstrek 6MT Base Premium Limited Sport

Why Choose Cusco?

  • Motorsport-proven components used in rally and drift championships
  • Japanese manufacturing with focus on precision drivetrain parts
  • Reliable fitment for Subaru symmetrical AWD systems

Frequently Asked Questions

  • Q: Does this fit 2022-2024 Subaru WRX 6MT models?
    A: Yes direct fit for 2015-2024 WRX all 6MT trims including Base GT Limited TR VB chassis rear differential
  • Q: What oil should I use after installation?
    A: Cusco hypoid gear oil 75W-90 with LSD additive or equivalent 1.3 quarts fill rear differential post-install
  • Q: How does Type-RS differ from other Cusco LSD types?
    A: Coil springs enable lower initial torque quicker engagement gentler operation versus MZ model torque plate design

Shipping & Handling

  • Method: UPS Ground or FedEx Ground
  • Availability: Special Order - typically ships in 7-14 business days
  • Packaging: Cusco original box 14 x 14 x 14 inches
  • Weight: 24 lbs

Request For Information

Have questions about Cusco LSD Type-RS 1.5-Way (1&1.5 Way) Rear 15-24 Subaru WRX / 18-23 Crosstrek 6MT Only? Fill out the form below and we'll get back to you by the next business day.
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