Quote:
Originally Posted by 70chevelleSS
Mine also has drone when the valves are open. But I don’t mind bc I just shut them when cruising and there is no drone. I have tossed around the idea of buying the flowmaster x pipe, I’m curious if it would make the drone better or worse or have any effect at all.
But no, I don’t have any whistling noises with the valves closed. My valves also appear to close fully
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Thanks for feedback...yeah no drone when closed. I like the sound a lot but when the valves are closed I get a hissing/spitting sound out the valve side. If I cover the tip with my hand then it goes away and it sounds really good. I listened to several vids of this exhaust before purchase and never heard this noise. I contacted Flowmaster and they had me email a screen shot of invoice and idle vid. Waiting to hear back.