Kartboy Rear Diff Outrigger Bushings - Hard Subaru WRX / STI 2002-2007

Rated 5.0 out of 5
Based on 1 review
SKU: kbyKB-003-Diff-H
Availability: 54 In Stock Learn more
Type: Drivetrain Bushings
Regular price
$38.00
Regular price
$38.00
Sale price
$38.00
Instant Discount


Subtotal: $38.00

Delivery Options:

  • Economy $11.95
  • 2 Business Day
  • Next Business Day
  • Slow $3.95
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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

Part #: KB-003-Diff-H

The Kartboy Rear Differential Outrigger Bushings for the 02-07 WRX & STi will eliminate alot of excess play associated with the soft stock rear differential bushings under hard acceleration and on/off throttle loads. Most (if not all) of the infamous subaru "clunk" will also be removed after installation of these kartboy bushings. Constructed of durable urethane and made in the USA.



average rating 5.0 out of 5
Based on 1 review
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100% of reviewers would recommend this product to a friend
Review posted
Reviewed by Nate, from United States
Rated 5 out of 5

5 Stars

Combined with some other driveline bushings, these really help firm up the car.

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