STM WRX/STi 2015-2021 Axle-Back Exhaust Nitrous Express we can build and install

we can build and install it for you

the Injen team has ensured that safe Air fuel (A/F) ratios are maintained throughout the powerband

• Increases Horsepower

Over tightening pipe thread will cause things to break

2008-2020 Subaru STi

STM WRX/STi 2015-2021 Axle-Back Exhaust Nitrous Express we can build and installThe STM Axle Back Exhaust Muffler Delete for the 2015 2021 Subaru WRX and STi bolts directly in place of your stock muffler and weighs 16 pounds less than stock. Beautifully crafted in the USA, the STM Axle Back features mandrel bent tube and tig welded flanges with polished, dual 3. 5" slanted, burned blue tips. All new mounting hardware is included along with two Remflex graphite gaskets for a leak free install. Vehicle Fitment: 2015 2021 Subaru WRX