304 Stainless Cat-Back Exhaust System

The Stillen stainless cat-back exhaust system is engineered to enhance the performance and sound profile of 2008-2013 Infiniti G37 coupes and 2014-2015 Infiniti Q60 coupes. Utilizing a true-dual design, this system replaces restrictive factory components with mandrel-bent 304 stainless steel piping, optimizing exhaust flow to deliver gains in horsepower and torque across the entire RPM range. When the throttle is pressed, however, the exhaust releases a signature, aggressive growl that complements the vehicle's sporty aesthetic. The rear section features a split exit configuration finished with polished dual-wall tips, providing an upgraded look that fills the factory exhaust cutouts. This bolt-on upgrade serves as an effective solution for owners seeking a balance between improved performance metrics and a refined, comfortable driving experience.