Quote:
Originally Posted by jakek88
hello all. iv got a 2008 f150 5.4L that i want louder. right now i have replaced the muffler with a y-pipe and have rear exit with 18" long 3.5" tips. does having true dual help? or high flow cats?
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yes true dual no mufflers and hi flow cats will be loud
check out my signature with hi flow cats and no mufflers 4.6 tho but it might help you with your decision
