Whiteline Rear Positive Traction Kit Inserts BRZ FR-S T86 BMW Increased noise and vibrations are

Increased noise and vibrations are to be expected with upgraded mounts

It is meant to be used with the front section of the current version TurboXS Downpipe for the 2002-2007 Subaru WRX and STi

Subaru WRX Wagon 2002-2007

This cutting-edge innovation also reduces backpressure

A single large cylinder and piston design will advance stability on and off the track

Whiteline Rear Positive Traction Kit Inserts BRZ FR-S T86 BMW Increased noise and vibrations areThe Whiteline KDT922 inserts (Positive Traction Kit) fill the voids of the factory bushings to dramatically reduce rear cross member misalignment & movement which allows a more positive feel from the rear end during cornering. Inserts are a cost effective upgrade, if you are looking for a stiffer press in option, consider KDT921.