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Old 09-21-2007, 02:46 AM   #1
Peer
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Join Date: Nov 2006
Location: Palo Alto, CA
Posts: 292
Muffler modification...

I recently saw a dyno chart with some increased HP numbers from a gutted (i.e., cut open & rip out) muffler. I'm curious what exactly such muffler hack involves -- gut the entire thing, or perhaps just open up certain parts..? It would also be interesting to know how different the sound would be compared to the stock muff. So, has anyone here done this gut-out hack?

-- peer
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