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jjgi5150 · 10-21-2022, 06:59 AM

Quote:

Originally Posted by HemiDave

I believe the exhaust note is also different creating more "pops and bangs" on the 2019 and up ZL1's due to a different tune.

https://www.camaro6.com/forums/showthread.php?t=563293

HemiDave,

I believe you are correct with that thought. I pulled the NPP fuse in my ‘18 ZLE, and even with the Green air filter and TM throttle body, it still ran very rich. It did pop and burble, but not as much as my new ‘22 ZLE (totally stock with just a Green air filter and NPP fuse pulled). I believe it is a more refined factory tune, as the mileage is also improved noticeably and NO filthy black soot exhaust tips.

The ‘22 just seems to be a bit more refined overall. FWIW, I would sure love to have a set of 3.90 rear gears in this car. That would put it over the top for me.

JJ