Invidia Downpipe Catless w/ O2 Bungs WRX (2008-2014) STI (2008-2018) Acura and engine control unit

and engine control unit

brake dust is released as the friction material wears in everyday braking

Perrin's crank pulley will not wear out engine bearings or the oil pump

In the Box:

What this means is

Invidia Downpipe Catless w/ O2 Bungs WRX (2008-2014) STI (2008-2018) Acura and engine control unitInvidia offers both catted and catless divorced style downpipes for the 2008 2014 WRX and 2008 2018 STI that are designed with a separator plate between the turbine and wastegate exhaust streams. Divorced style downpipes reduce exhaust turbulence for exceptional exhaust flow and performance. Every Invidia downpipe features 3" diameter stainless steel piping, 1 2" thick flanges, and a cast upper mouth section. Please note that without engine management