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Old 03-12-2011, 08:28 PM
ram8308 ram8308 is offline
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Join Date: Feb 2011
Location: chicago
Age: 29
Posts: 1
Gender: Male
Vehicle: 2009 dodge ram
Trim Level: laramie
Color: black
Engine: 2009-2010 345ci (5.7L) Hemi V8 390hp 407lb/ft
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Default just got a flowmaster cat back system have a ? for u all

whats up guys to day i put a flowmaster cat back system on my ram with the 5.7 L hemi the system came with a 50 hd muffler they didnt have a cat back with the original 40 or supper 44 the system sounds pritty bad ass nice a deep but it lacks a little volume i was wondering if any one know if that muffler that came with the kit is there for a reason and if i swap it out with a 40 or 44 if it will cause a problems with the truck or computer. bc i have heard not sure if its hes a goo source or not but i was told the hemi engine needs some back pressure and if i change the muffler to something different for the kit and the truck would loose low end power what do u guys think thanks to everyone who answers that has knowlegable infor thak u
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