Akrapovic Sound Kit - Audi S5 Coupe (8T) 2011+ 2020-acura-mdx-esi5020233 this could potentially be the

this could potentially be the cause

Free Off-The-Shelf Calibrations

Specially designed to withstand even the most extreme engine conditions

with dyno-proven horsepower increases of approximately 8–12 hp

B 2015-2018 Subaru WRX STI Base 2015 Subaru WRX STI Launch Edition 2015-2018 Subaru WRX STI Limited 2016 Subaru WRX STI Series

Akrapovic Sound Kit - Audi S5 Coupe (8T) 2011+ 2020-acura-mdx-esi5020233 this could potentially be theThe Akrapovic Sound Kit lets you tune the character of your exhaust note electronically, adding an extra layer of control over how the car sounds. It integrates with the vehicle and the matching Akrapovic system. Features Electronic exhaust sound control Integrates with the matching Akrapovic system Adjustable exhaust character Fitment Make: Audi Model: S5 Coupe (8T) Year: 2011 Notes Professional installation is recommended. Confirm fitment for your