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Old 10-04-2016, 08:05 AM   #1
parish8

 
Drives: 17 SS a8
Join Date: Feb 2010
Location: omaha
Posts: 1,678
Crimp area and dod exhaust valve removal

I removed these sections and replaced them with smooth pipe. I doubt there is any hp gain but maybe there will be later when I am making more power. Took about 3 hours and about $70 in material. It might be a hair louder with the cut outs open but I am not sure. You can just barely hear the 4cylinder mode but it is mostly drowned out by wind and tire noise.

Cat delete, e85, tune are next.
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