Whiteline Rear Differential Lock Kit WRX / STI (2002-2007) 3 Series Exhausts KW Variant 1 coilovers are

KW Variant 1 coilovers are the best of both worlds for those looking to get into a high quality coilover system that is perfectly suited for both competition and the street

This module comes with a built-in blue L

Both are expertly crafted out of stainless steel to a mirror polish

Volkswagen OE Sport Springs for the VW Golf GTI Jetta GLI MK4 1

Perrin has observed performance gains of over 5 HP horsepower and torque throughout the power band with one of these units on an otherwise bone stock BRZ

Whiteline Rear Differential Lock Kit WRX / STI (2002-2007) 3 Series Exhausts KW Variant 1 coilovers areThe Whiteline rear differential support lock kit for the Subaru WRX STI is simple and inexpensive rear end bushing kit that will make a significant difference in the day to day driving experience of your Subaru. The stock rear end on the WRX & STI can suffer from excessive play and slop as well as the notorious the 1 2 upshift "clunk" due to soft rubber OE bushings. Reinforcing the flimsy stockers with Whiteline's performance polyurethane allows you