For 6 Series F12 F13 M6 2.5" In 3.5" Out 9.5'' Double Wall Exhaust Pipe Dual Tip

Easy installation: weld-on design, double layer wall, slant angle cut, rolled edge. Double Wall, Dual Exhaust Tip. Stylish & pleasant-sounding: the thicker inner wall design make your car sounds rumble and crackle for a more powerful and unique sound while giving your car a new & sporty appeal.

eBay