
10-19-2014, 01:57 PM
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CC Member
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Join Date: Apr 2014
Location: Deerfield,
NH
Cobra Make, Engine: Backdraft 5.0 coyote
Posts: 15
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Not Ranked
BDR 1340 does the same thing. and I have taken the rubber mallet to them as well. It is not the 585 hp, because I have the 5.0 Coyote. It looks to me like back pressure, when you watch the pipe with the door open. All I know is its annoying. I talked with Jay on changing the mufflers out. If that noise is normal I don't want normal  Jay and Brian will figure it out you can be sure of that.
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