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Old 08-28-2019, 11:28 AM   #6
SilverZl1
 
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Drives: 2018 ZL1
Join Date: Mar 2019
Location: Houston, Tx
Posts: 31
I have 2” LT headers, no cats, and only added a couple of simple bullet resonators to the remaining stock exhaust as Parish8 mentioned to get rid of the rasp that is common with this setup. Doesn’t lessen the volume, just kills the rasp. I also pulled the NPP fuse so the flaps don’t close at cruising speeds. If you don’t pull the fuse and the flaps close at cruising speed you’ll hate the sound you get at partial throttle. I run E85 for the hp so don’t have the smell, but kinda liked the smell anyway.
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