///M3 and Evo Photoshoot

[OMG Its Platz]

I have a single 3" exhaust on my 99 M3.

Stock OBD2 Manifolds.
18" Resonator
20" Borla XR-1 Race Muffler

And a single 3" with high flow cat. To 3" out., no muff. Wut ya think about that.... Cuz it's benn crossing my mind