Perrin Master Cylinder Brace STI Variations:Perrin Master Cylinder Brace Black STI (2008-2014) The need for power

The need for power

No O2 sensor spacers needed

this valve is designed to vent partly to atmosphere and partly back to the intake giving you the "best of both worlds"

The AWD DW65v fits the MK4 and MK5 R32 Golf

Perrin Master Cylinder Brace STI Variations:Perrin Master Cylinder Brace Black STI (2008-2014) The need for powerThe Perrin master cylinder support brace for the Subaru STI provides the much needed support for the master cylinder and brake booster that the stock setup just can't provide. When force is placed against the brake pedal, the brake booster and master cylinder will actually flex, and over time can fatigue to the point of failure. The designers at Perrin have devised a simple plan to fix this problem; a brace cut from 6061 aluminum that bolts to the