Custom cat back exhaust w/ slanted oval tips made by Silverline, as well as Aero resonators on the X pipe. Shop originally created the exhaust for an 06 M5, which was sold to me from the first owner after 10k of use. I have put approx 2k of use myself on the setup, an 08 M5. No dings or dents on the oval tips. I'd prefer a sale within the SF Bay Area to avoid shipping costs. Exhaust is still on my M5 if anyone wishes to check it out and listen to it in person prior to sale. PM me for more details.