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Muffler delete vs npp open valve sound
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08-25-2018, 04:06 PM
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Jetsfan11791
Drives: 2017 Camaro SS
Join Date: Mar 2018
Location: Staten island
Posts: 22
Yeah it seems that all exhaust noise and drone goes away on the highway when it drops into v4 mode. Once you step on the gas again you hear a little buzzing.
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