Revel 15-21 WRX/STi 11-14 WRX STi 08-14 WRX Ultra Ti Titanium Single Exit Catback Exhaust

Experience improved performance and a throatier sound with the Revel 15-21 WRX/STi 11-14 WRX STi 08-14 WRX Ultra Ti Titanium Single Exit Catback Exhaust. Crafted with quality titanium construction and featuring a single exit design, this exhaust flow boosts up to 13.5% more air than the OEM for improved torque and higher hp. Enjoy improved throttle response and increased fuel efficiency.