Considering putting the cat back on - Ford Powerstroke Diesel Forum
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post #1 of 4 Old 11-08-2011, 06:27 AM Thread Starter
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Considering putting the cat back on

I have an 04 6.0 with a 4 inch exhaust from the turbo back with no muffler/cat. Once the Rpms get to around 2200 there is a serious drone, which is pretty badass, but its starting to get annoying. What whould putting the cat on do sound wise? And what negative effect on performance? I have a cat delete pipe in place right now. Thanks

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post #2 of 4 Old 11-08-2011, 06:41 AM
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I know i had a serious drone on my 04 cobra bassani with no cats and i put cats on it and it helped out ALOT. FWIW
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post #3 of 4 Old 11-08-2011, 07:26 AM
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You need a resonator. I got mine from fte and it kills the drone without hurting flow. I had mine on for a short while but changed up my exhaust and went to a stack.

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post #4 of 4 Old 11-08-2011, 07:28 AM
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did you try just putting a 4" muffler in instead of the muffler delete pipe? my neighbor has a muffler and it is noticeably quieter than our 6.0's hahahaha

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