hp from custom exhaust
09-09-2013, 08:53 AM
#1
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99 ford lightning
hp from custom exhaust
I was wondering if anyone has dynoed or run before and after from a exhaust with just high flow cats, front cat delete and x pipe with stock mufflers.
09-09-2013, 09:00 AM
#3
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E55 AMG on Ethanol-Meth; 600rwhp BMW M5
Right where the neck bottles up above the primary cat into the manifold is where you can gain power. Getting rid of that bottle neck and installing race cats will get you 10rwhp at most. Getting rid of the secondary's unless they are clogged, and adding a x pipe will net you sound only.
09-09-2013, 02:32 PM
#6
PLATINUM SPONSOR
Race cats are worth at least 10 over secondaries but get some quality cats, as most of them blow out quick. Brick comes loose and twist inside and bye bye power. The E55 mufflers also neck down and not straight through flow like on the CL and S class.
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E63 Biturbo, UPD Cold Air induction kit, UPD performance crank pulley and UPD adjustable rear suspension with ride height adjustment.
CL55 UPD Cold Air Boost kit, UPD 3000 stall converter, UPD 77mm SC clutched pulley and beltwrap kit, Custom long tubes, UPD crank pulley , UPD suspension kit, UPD SC pulley, Aux. HE, Trunk tank w/rule 2000 pump, Mezeire pump, UPD 5pc idler set, Aluminum rotor hats.
www.ultimatepd.com
instagram @ultimate_pd
facebook.com/ultimatepd
