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JTP · 10-09-2009, 05:18 PM

If I recall correctly, Jake Raby said the stock muffler has a decent flow rate and most aftermarket mufflers give minimal HP gains if any. (Correct me if I'm wrong please)

More free flowing headers will help with power increases over muffler change.

10-09-2009, 05:18 PM	#2
JTP Registered User Join Date: Aug 2009 Location: MD Posts: 628	If I recall correctly, Jake Raby said the stock muffler has a decent flow rate and most aftermarket mufflers give minimal HP gains if any. (Correct me if I'm wrong please) More free flowing headers will help with power increases over muffler change.