Hollowing-out stock muffler

Hollowing-out stock muffler

07-20-2004, 10:28 PM

#1 (permalink)

SJBrooks

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Join Date: Oct 2003 Location: Clovis, NM Posts: 209

Hollowing-out stock muffler

I've straight-piped my truck, and while I really like the sound (around town) and its effect on lowering EGTs while towing, it really has a bad drone while towing (approx 1900-2000 rpm). I want as little exhaust restriction as possible, so I'm considering hollowing-out the stock muffler (extent TBD) and trying that. Has anybody done that? If yes, how did the sound compare with stock and straight-piped (if you've done that)? I'm especially interested in how much drone the hollowed-out muffler produces. Also, if you've done this, did you completely hollow it out or only partially remove some baffles?

Thanks!
Steve

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