STM Tuned mid-pipes for 2018 Audi RS3 HD

This is a before/after audio/video for the STM Tuned Mid-Pipes for the 2018 Audi RS3 (8v) and TT-RS (Mk3) with the 2.5T engine. Audio Decible rates were captured with the DecibelX Pro app for iPhone. I realize it may not be accurate, but I simply wanted to measure for a gain in volume, not an absolute accurate value. Car - 2018 Audi RS3, Daytona Gray, Tech, Black Optics, B&O, Tech Package. No other modifications have been preformed with the exception of the mid-pipes. Installation was quite simple, requiring 12mm and 13mm bolts. I did this on jack-stands in my garage in about an hour or so. Filmed with a GoPro Hero 4, Black.