Thread: Muffler?
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Old 04-06-2011, 02:39 PM   #1
carbuilder
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Join Date: Jul 2002
Location: detroit area
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Default Re: Muffler?
I did extensive dyno testing with crank wiping scrapers,not one increased horsepower,not used in cup racing or pro stock,,the best oilpan is NO oilpan
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