CAMARO6 - View Single Post - Flowmaster American Thunder Dual Mode Axle-back (NPP) for 2016+ Camaro SS & ZL1

KingLT1 · 03-20-2019, 02:50 PM

Does anybody else notice a excess amount if "hissing" when the valves are closed? It's almost like the valves don't close all the way and they leak.

03-20-2019, 02:50 PM	#122
KingLT1 Drives: 2016 1SS NFG A8 Join Date: Aug 2017 Location: 46804 Posts: 7,560	Does anybody else notice a excess amount if "hissing" when the valves are closed? It's almost like the valves don't close all the way and they leak. __________________ 2016 NFG SS A8/Whipple 2.9/Fuel System/Flex Fuel