Our exhaust systems for Infiniti G37 Coupe replaces the typically quiet and restrictive factory muffler and exhaust components with a larger, free flowing straight-thru type muffler. Whereas OEM muffler constructions typically rely on multiple chambers to bounce and absorb sound frequencies. This results in the increase of backpressure as exhaust gasses are deflected back and forth robbing engine response and power. Megan Racing exhausts system utilize straight-thru perforated glass-pack mufflers dramatically decreasing exhaust backpressure as the gasses are allowed a straight, unrestricted passage while sound frequencies are absorbed by the glass-pack fiber material providing a nice, mellow tone. Comprised of 100% T-304 stainless steel, Megan Racing exhaust components are designed to last the test of time and protected with a 1-year warranty against manufacturer defects. Specifications & Features:- 2.5" Tubing (2.375" ID)- Single muffler with single 4.5"x3.5" Oval Burnt Roll Tip designAPPLICATION:Mercedes Benz C63 AMG 2012 - 2015 NOTE: All Megan Racing Exhaust and Suspension products are deemed for "closed course and off highway use only"-- please check local laws regarding the modification of the exhaust systems by checking the vehicle code for your state. Many states are more stringent on exhaust modification laws and to pass SMOG. Please check your local laws. All Megan Racing exhaust system components will alter and affect the vehicle's overall sound in pitch and volume. All to which is subjective in manner. Megan Racing will not claim responsibility and/or accept returns based on an individual's personal preference.