2015 - 2021 Subaru WRX/STI AFD F1 Titanium Single Exit Exhaust Racing Apparel ECU tune not required to

ECU tune not required to see gains

improved recovery between pulls

1 for drain)

Does Not Fit 2006-2011 Civic Si - Use P/N 350-05-5015

Internal Construction: Monotube for consistent damping performance

2015 - 2021 Subaru WRX/STI AFD F1 Titanium Single Exit Exhaust Racing Apparel ECU tune not required toF1 Titanium Single Exit Catback Exhaust 20152021 Subaru WRX STIFull Blue Titanium Ultra Lightweight Direct Bolt On Race Bred Titanium. Street Driven Performance. Unleash the true sound and performance of your WRX or STI with the F1 Titanium Single Exit Catback Exhaust. Hand crafted from full blue titanium, this system weighs just 9 lbs and offers dramatic improvements in engine response, high RPM breathing, and overall weight reduction. Paired with a