Simply by replacing the standard downpipe with this larger bore, decat downpipe, your Impreza will instantly gain up to 30BHP !
This is done through removing the primary restrictive catalytic converter improving the exhaust gas flow and speeding up turbo spool time.
* CNC mandrel bent T304 grade polished stainless steel.
* Fully TIG welded.
* 3 Inch (76mm) bore all the way through with 12mm thick flanges narrowing down to a 2 1/2 Inch (63mm) bore at the outlet.
* Perfect fit with a standard or any aftermarket catback system.
* Lambda bosses fitted to accept original lambda probe.
* Improves BHP and torque over the entire RPM range.
The most cost effective way of releasing power from your car.
This item will NOT pass an emissions test and is sold for off-road use only - perfect for track days.
Fits Subaru Impreza GRB 2008+ all turbo models