Ran into this today and I was wondering if anyone on M/A has one installed or knows the build quality. I found it loud and fun to watch the videos, but I have a nit on the warranty disclaimer. Mini Cooper R56/R57/R58 - ARï¼ÂYTRIX Performance exhaust mufflers & Cat-back system for Lamborghini, Ferrari, Audi, BMW, Mclaren, GT-R, 370Z, A45, CLA45, AMG, Volkswagen and Porsche The GTR sounds pretty good on the home page video.