Kartboy Rear Diff Outrigger Bushings - Hard Subaru WRX / STI 2002-2007 | KB-003-Diff-H discontinued-with-inventory Fast Motorsports 4-ply silicone construction

Fast Motorsports 4-ply silicone construction has the right compliance to bridge the chassis mounted airbox to the violent motion of a boxer engine being driven in anger

MMRAD-STI-08

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you'll be driving safely for the life of the car

Kartboy Rear Diff Outrigger Bushings - Hard Subaru WRX / STI 2002-2007 | KB-003-Diff-H discontinued-with-inventory Fast Motorsports 4-ply silicone constructionPart #: 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.