Exhaust options for 128i

[christian_128i]

Can you run the AA headers for the 128i with the stock exhaust? If you do catless headers is a tune necessary? Please educate me lol.

[chris82]

Originally Posted by ZarathustraDC

Does anybody on this platform wrap their aftermarket headers to knock down the noise?

Aren't they wrapped only for heat reasons? Wasn't aware it would decrease sound.

[ZarathustraDC]

Originally Posted by chris82

Aren't they wrapped only for heat reasons? Wasn't aware it would decrease sound.

I think it depends on the car and the style of factory manifold. Mass is a main driver of sound level, but resonance plays some part, which wraps can tame. I was just curious if anyone has tried it and commented on it.