perrin Down Pipe Front Section Subaru Impreza WRX / STI 2002-2007

If your factory catalysts are tired, broken or missing PERRIN™ now offers a replacement catalytic converter that is approved for all states that do not require CARB approval.. Utilizing 3” 304 stainless steel, polished to a mirror finish, these are an excellent alternative to the inefficient factory replacements. Using a 200 cell metallic substrate, our converters are guaranteed to take the extreme heat produced by high horsepower motors and do so for miles and miles. (See warranty details included with each.)  Contact PERRIN or your local dealer for additional information.  While this is not the normal type of downpipe you will find, you can make lots of power and still be legal.  great gains!  10WHP and 20ft-lbs of torque! this is a bolt in stock replacement no modification required

$339.99 USD FREE SHIPPING