Invidia Q300 Catback Exhaust Titanium Tips WRX / STI Sedan (2011-2014) Mazda 2in/Rear -1

2in/Rear -1

Installing the header will not only give you a gain in horsepower

Front Spring Rate (Tender / Main): 168 lb-in / 380 lb-in

but when the engine is at high load (WOT)

Invidia Q300 Catback Exhaust Titanium Tips WRX / STI Sedan (2011-2014) Mazda 2in/Rear -1Invidia's new Q300 catback exhaust system for the 2011 2014 WRX STI sedan provides a great alternative to the standard N1 style exhaust system without compromising power or quality. Traditionally, if you wanted a quieter exhaust system, you had to sacrifice performance to get there. Not anymore. Enter the Q300 series performance exhaust from Invidia. Q300 exhaust systems utilize specially sized resonators and muffler baffles to maintain power output