CAMARO6 - View Single Post - Low Cost NPP modification for more volume

Bobkd · 08-30-2018, 08:02 PM

If you could block the exhaust coming out of the muffler case next to the npp valve that would get you what you're looking for. With the valve closed it could still go into the muffler and out the inside outlets for stealth mode.

08-30-2018, 08:02 PM	#5
Bobkd Drives: 2018 1ss, 2021 silverado HD Join Date: Jul 2017 Location: wny Posts: 68	If you could block the exhaust coming out of the muffler case next to the npp valve that would get you what you're looking for. With the valve closed it could still go into the muffler and out the inside outlets for stealth mode.