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      05-06-2026, 03:28 PM   #19
TboneS54
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Drives: '04 M3 6MT, '11 M3 DCT, '22 X7
Join Date: Nov 2009
Location: SoCal

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Quote:
Originally Posted by Thumbie View Post
I also don't like loud exhaust. I used to think it was cool 20 years ago. Happy with my dinan axle back and stock cats.

I asked my mechanic once (shop specializes in M cars and sees tons of M3s) what his favorite setup was. Interestingly enough, he said stock muffler but catless. Anyone ever tried or heard this in person?
Yes, but it kinda sucks ngl. Way too quiet still.

Here's a video:

https://www.youtube.com/shorts/bcF7ZTDTJo0

You gotta mod the muffler at least a little bit. Even a "1 pipe" mod would be enough. But the stock muffler, as is, dampens too well.

My final setup (unless I procure an E-race) is now test pipes (with an extra pair of resonators welded in) and a "1.5 mod oem muffler". 2 pipe was still too raspy tho volume was good.
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/// 2004 Silvergrey M3 · Coupe · 6MT · Slicktop · zero options
/// 2011 Jerez/Bamboo E90 M3 · DCT · Slicktop · IG: @na.s54
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