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Old 05-18-2020, 09:53 AM
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MKS427 MKS427 is offline
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Join Date: Jan 2017
Location: Glendale, AZ
Cobra Make, Engine: FFR MkIV 427
Posts: 635
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I had a similar sound from my FFR pipes. It turned out to be a crack in the body of the side pipe.
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