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      02-03-2011, 03:54 PM   #8
mot
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Drives: e92 AW M3 6MT
Join Date: Oct 2010
Location: Bay Area, California

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Quote:
Originally Posted by emthreeboy View Post
I had it done, well my uncle did! Opened the muffler, cut out the perferated pipes, replaced those two with two full solid stainless steel pipes, welded it together, restuffed the muffler with sound absorb. material, welded the muffler together and VOILA'!

Soundwise, pretty much zero drone, gets kinda high pitched/aggressive LOUD at around 3k RPM and up. Below 3k rpm its really close to stock if driven softly, otherwise if driven hard from down low its pretty damn loud.

If you're having it done, make sure they use top-notch material to prevent rust or lack of quality, we had 2.5'' 409 stainless steel pipe (never rust) + stainless steel welding wire + stainless steel mix-gas for welding-machine.
do you happen to have pictures of this modding process?
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