05-02-2020, 01:15 PM
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Half-Ass Member
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Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 22,025
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Not Ranked
That sounds like a loose baffle, possibly from a broken weld, inside the pipe. There have been a few threads on that, like this one: Standard Backdraft pipes, internal rattle noise |
Threaded Mode
