Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com - View Single Post - Convertible Exhaust Butterfly Valve

nukemustang · 02-05-2013, 09:28 PM

I think it also has to do with reducing resonations when the AFM kicks in.... I used to hear the valve cycle when it would transfer back and fourth from V8 to V4 mode. Anyone who has changed out the exhaust (cat back) has removed these valves.

02-05-2013, 09:28 PM	#4
nukemustang Drives: 2017 Raptor, 2017 SS Join Date: Feb 2010 Location: Charleston, SC Posts: 277	I think it also has to do with reducing resonations when the AFM kicks in.... I used to hear the valve cycle when it would transfer back and fourth from V8 to V4 mode. Anyone who has changed out the exhaust (cat back) has removed these valves. __________________ Saving for: 2019 ZL1 convertible..... SOLD:2016 2SS Red Hot Convertible with black metallic rally stripes SOLD:2011 Silver Ice Metallic 1SS/RS Convertible. Completed modifications: installed factory HUD, deleted AFM/DOD, Dynatech LT coated headers with high flow cats, Solo Cat back exhaust, CAI inc. intake, Vmax ported TB, SIM quarter flares/splash guards, steering wheel radio controls, PDIM iPod interface in center console, RX catch can, JRE cold air scoop, windshield washer bottle relocation.