Perrin Rear Diff Subframe Lockdown System Subaru WRX / STI 2002-2007 | PSP-SUS-525

Rated 5.0 out of 5
Based on 3 reviews
SKU: perPSP-SUS-525
Availability: 3 In Stock Learn more
Type: Suspension Bushings
Regular price
Regular price
Sale price
Instant Discount

Regular Price: $63.00 - Instant discount: $9.45 = $53.55

Subtotal: $53.55

Delivery Options:

  • Economy $11.95
  • 2 Business Day
  • Next Business Day
Fastrak Delivery: , Order within hours minutes
Next Day Delivery Eligibility
  • Order in-stock items before 3:30 PM EST with 'Fastest' delivery for next-day arrival.
  • Orders from Friday to Sunday arrive by the following Tuesday.

Delays can happen. Contact us if your order doesn't arrive on time for a $20 credit on your next purchase. Minimum order must be $99

Fitment Information:

2002-2007 Subaru WRX

2004-2007 Subaru STI

2004-2008 Subaru Forester XT


  • Eliminate differential to chassis movement
  • Improves Acceleration and Throttle Response
  • Provides a more connected and precise feel for the driver
  • Easy Installation
  • Estimated Installation Time - 30 Minutes
  • Installation Instructions

In The Box:

  • (4) PERRIN Diff Lockdown Bushings
  • (2) PERRIN Large Subframe Bushings
  • (2) PERRIN Subframe Bushings
  • (2) M12 Hex Head Bolt
  • (2) Metal Bolt Sleeves
  • Warranty, instructions, stickers

The Perrin Rear Sub-frame Lockout is designed to eliminate differential to chassis movement between the rear sub-frame and the uni-body. Acceleration and throttle response is improved and much more linear - very important for autocross, drift, and drag racing. The Perrin piece will eliminate all flex between cornering, acceleration and braking forces being applied to the suspension and chassis. This Perrin kit offers such a big improvement in the overall feel of your car for a price everyone can handle.