Skip to product information
1 of 3

Cusco

Front Type-RS 1.5 Way Limited Slip Differential

Fits: 04-14 WRX STI

Sale price $1,33200 Regular price$1,480.00 Save $148
Earn $26.64 In JDMuscle Rewards!
Profile Avatar

Talk to an Enthusiast

Verify Fitment & Product Recommendations

M-F 9:00AM - 6:00PM

Low stock! Only 3 left

Pay over time available · Est. $41.63/payment
ⓘ

Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.

Pay over time available · Est. $41.63/payment
ⓘ

Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.

Cusco Front Type-RS 1.5 Way Limited Slip Differential
Fits: 04-14 WRX STI
Be the first one to review

Fitment

Please Note: Cam settings can only be changed with the unit disassembled during an overhaul; professional installation recommended.
  • 2004–2014 Subaru | WRX STI

Description

Cusco's Type-RS limited slip differential for the front axle of the 2004-2014 Subaru WRX STI. In a corner, the inside driven wheel unloads and can spin freely instead of putting power down; a mechanical LSD forces both front wheels to lock together, maximizing traction on power out. Where the factory front differential can be too weak to keep both wheels locked under hard acceleration, the Cusco unit keeps them firmly locked to keep the car planted.

1.5 Way - Activates under acceleration with lighter lockup on deceleration. Suited to all types of motorsports driving, with strong lockup on acceleration and a lighter deceleration setting favored by road racers; also usable for drifting, low-gear autocross, and gymkhana.

The Type-RS uses coil springs to absorb some of the initial torque applied to the LSD. This makes for gentler engagement and smoother transitions, keeps chatter to a minimum, extends service life, and reduces oil-change frequency.

  • Part Number: LSD 184 C15
  • Position: Front axle
  • LSD Type: Type-RS (coil-spring design)
  • Cam Setting: 1.5 Way - full lock on acceleration, lighter lock on deceleration (default 45/15 deg)
  • Initial Torque: 3-5 kg
  • Application: 2004-2014 Subaru WRX STI
  • Cam settings can only be changed with the unit disassembled during an overhaul
  • Professional installation recommended

Shipping and Delivery

Review our Shipping Policy for delivery details, shipping costs and exclusions.

Warranty and Support

For Cusco warranty information, contact our support team.

Return and Refund

Eligibility, exclusions, applicable fees and exceptions are detailed in our Return Policy. Restrictions apply to special-order and custom products.

Proposition 65

Proposition 65 Warnings: cancer and reproductive harm www.p65warnings.ca.gov