I ended up de-resonating in the endDavey Dee wrote:Did you find out for definate if a cat back system is fine for the warranty??
Performance Upgrades, Mods, Projects, Exhaust, Drivetrain, ECU
2014 A45 AMG ¦ Jupiter Red ¦ AMG Aero Pack ¦ AMG De-Resonated Sports Exhaust ¦ 19" AMG Alloys ¦ AMG Exclusive Pack ¦ Full Leather incl. Heated Seats & Leather Dashboard ¦ Panoramic Sunroof ¦ AMG Night Pack ¦ Privacy Glass