New exhaust set up for the Z4 M Coupe.

Really digging the sound of this current intake/exhaust. Tuner CSL intake. exhaust set up is SuperSprint stepped headers, custom 2.5” section 1, Supersprint section 2 and Supersprint Race exhaust (repacked with half scrubble/half exhaust mat).

[rotorblade]

sounds good
a cheaper setup I thought of is with two metallic (FIA certificate) 100cpi at the front, with virtually no restriction to the flow, then the pipes merge into one 3” (depending on the engine) then splits into two pipes, no mufflers. To reduce drone, a J pipe is useful. the central 3” has VBands at both ends and for street I can swap it for a euro4 ceramic Catalytic converter. On my car I have a muffler that has one 3” outlet and one straight through 3” outlet and a second 2.5” muffled outlet. without the main cat it sounds like straight piped.