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The new Flowmasters I installed on my Edelbrock s/c 2010 GT sound great at idle and cruising, but terrible between 2500 and 3000 RPM. Any ideas or comments/similar experiences?
The "terrible" is a vibratory noise. It gets loud at 2500, then dissipates. It almost sounds like body panels vibrating on a car with the base pumped up.
yep, the louder Flowmasters drone. I had these on my 2010 GT and they didn't drone much at all. On my 2012 I have this kit, and they're much louder and droning.