Perrin Uppipe WRX (2002-2014) STI (2004-2018) Audi so there is no cutting

so there is no cutting of the stock structural components required

The controller also features an LED readout and sweeping LED "needle" that changes colors as AFR fluctuates from rich to lean

An LSD will force the other wheel to spin at the same rate

The rotor finish helps prevent glazing of the pads and improves wet and dry braking performance

Perrin Uppipe WRX (2002-2014) STI (2004-2018) Audi so there is no cuttingConstructed from TIG welded T 321 stainless steel with 1 2" thick flanges, the Perrin uppipe for the Subaru WRX STI Legacy GT is designed to handle the extreme heat of your Subaru's turbocharged engine without warping or cracking. Bolt this product up to your turbo and you will experience quicker spool, more power and snappier low end throttle response. The Perrin uppipe includes detailed instructions and new studs to make installation of this part as