Quote:
Originally Posted by Chevyfanatic101
Well, my brother just bought a 2020 1ss camaro without checking to see why it was so loud, i looked under the hood and it has a full catless header back system. From factory this car came with npp exhaust by looking at the rpo codes so i guess i have a few questions
1: does anyone know where to find the factory npp muffler system for sale
2: would the factory muffler be able to hide at least some of the droning noise on the car when driving interstate speeds
3: are there any better options for quieting it down? we want to keep the headers but it is his daily driver and the loud exhaust may get annoying over time
4: does anyone have any good sound clips of a 6th gen camaro with headers and stock npp exhaust? mainly looking to see if stealth mode will be managable as a daily driver
thanks!
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1:
https://www.camaro6.com/forums/showt...ht=npp+exhaust , or
https://www.camaro6.com/forums/showt...ht=npp+exhaust Keep an eye on the owner classifieds for OE stuff for cheap. I just bought MMR wheels with tires,TPMS, and Gorilla lugs from an add started in 2020, so don't be discouraged if the "for sale" post has been around. It could still be available.
2: Yes
3: green cats aren't better but will provide a bit more noise suppression while not hurting the sound quality.
4: not me, but I did lose the 2nd cats, added Borla's x-pipe, and replaced the "crushed pipe" section with 2 3/4" straight pipe. That works well for me.
