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I'm looking for a few great suggestions to get rid of the tinny rasp sound that my 2004 E46 M3 exhaust makes.... It's driving me crazy (pun intended). I'm not sure if any one can use brand names on this site however I'd like to find an Exhaust System that's affordable yet gives a nice deep sound. Cat-Back or Header-Back System. Thank you!
 

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E30M3 Race F10 535 R1150Rt M Coupe
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If still available????
By far the best solution is the Rogue Engineering "Anti Rasp Pipe" . I was even impressed when I had to move a car outside with everything aft of the anti rasp removed.
 

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I'm looking for a few great suggestions to get rid of the tinny rasp sound that my 2004 E46 M3 exhaust makes.... It's driving me crazy (pun intended). I'm not sure if any one can use brand names on this site however I'd like to find an Exhaust System that's affordable yet gives a nice deep sound. Cat-Back or Header-Back System. Thank you!
I like Dinan's exhaust but me wife thinks it's too loud. It's definitely not raspy/hissy like the OEM. The stock one is a lot quieter and sometimes I miss the quiet.
 

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OEM ///PLUS
2003 M3 6MT Slicktop
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Easiest is to just add a resonator inline next to the factory resonator. AR25/AR30 are common ones used and welded in.

 

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2003 M3 Cabrio 6MT
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45 Posts
I find that at an affordable price range most people agree supersprint is a great sound/hp gain/quality.


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E30M3 Race F10 535 R1150Rt M Coupe
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Depends on what your after. If it's the unpleasant rasp, that needs to be controlled further upstream. The resonator doesn't do a particularly good job of such. Quelling the rasp with a anti rasp pipe is most effective.

Not only that, if you want a louder exhaust..... with the rasp gone you have more freedom to explore with the nastiness out of the equation.
More Mmmmmmm.
 
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