STILLEN Exhaust Infiniti Q50 3.7 (14-15) Stainless Catback 504440

Fitment Information Infiniti Q50 (2014, 2015) Hybrid and Non Hybrid models Specs & Features Catback exhaust - does not alter or replace any emissions equipment Increase Horsepower Gain Torque Mild note at idle Aggressive note under throttle Compliments the factory exhaust cut out nicely. Delivers an aggressive look that matches the enhanced exhaust note. Bolt-On Installation Made in U.S.A. Limited Lifetime Warranty when purchased through Redline360 (authorized dealer) STILLEN doesn't simply take a car or truck, figure out the piping route and slap a muffler on the end.  STILLEN puts countless hours of R&D, dyno time, and trial and error to create not only one of the best looking and best fitting exhaust systems on the market, but also one that outperforms them all!  STILLEN carefully tests systems to determine the best piping diameter to make the most power through the whole RPM band, the proper muffler to bring out the awesome sound of the motor, and the best qu