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Old 08-27-2007, 03:08 AM   #1
GREASEMONKEY72
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Join Date: Aug 2006
Location: Bakersfield,CA
Posts: 7,893
worse MPG with open exhaust??????

now ive got the stock ramhorn manifolds with glasspacks and theres about 2ft worth of pipe inbetween the manifolds and the packs and my question is if i cut the glasspacks off and leave it open will i get worse mpg? or will it be the same? its true duals with no crossover

cause i know the glasspacks do give some back pressure which helps with mileage but is it enough to where ill get worse mpg with open pipes?

how bout it andy?

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"Allison" '72 C/10 LWB 350SB/TH350 - DD

PITBULL IS NOT A CRIME
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