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For anybody that has installed the axle back track version on a ZL1 that already had the exhaust fuse pulled, how much of a difference did the track version make?
I’ve seen the cutout pic before of the ZL1 exhaust and the valve open pipe looks pretty straight through so I don’t see how the track axle back can be that much louder as they have the track axle back as the loudest version listed on their site except for having the performance pipes installed.
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