Loud exhaust pop - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

bw26ss · 01-01-2013, 11:13 AM

This has probably been covered before, but I have the american thunder flowmaster catback, and when you start the car, it sometimes makes a loud pop, it also did this with the stock exhaust, just not as loud, is this pretty common, or is it reving to high on startup? 2011 l99 with afm disabled with tune.

bw26ss · 01-01-2013, 11:18 AM

just wanted to add, that it doesn't do this on an initial cold start, just after the car is warm, like I go to the gas station and get back in my car, start it and it makes the loud pop. Car has done this since new, now has 10k miles.

The Blue Ox · 01-01-2013, 02:14 PM

Common and normal with these type of motors! Some people like it, and some don't !!

wullger · 01-01-2013, 08:34 PM

It's just your car letting all the other nearby cars know who the boss is.

SD2011SS · 01-03-2013, 02:30 AM

Its the backfire from the exhaust, unburned gas flowing through the exhaust pipes. I love that sound, especially loud with my long tube headers and high flow cats

01-01-2013, 11:13 AM	#1
bw26ss Banned Drives: ss camaro Join Date: Jul 2012 Location: usa Posts: 876	Loud exhaust pop This has probably been covered before, but I have the american thunder flowmaster catback, and when you start the car, it sometimes makes a loud pop, it also did this with the stock exhaust, just not as loud, is this pretty common, or is it reving to high on startup? 2011 l99 with afm disabled with tune.

01-01-2013, 08:34 PM	#4
wullger Supercharged Drives: 2010 Camaro 2SS/RS Join Date: Apr 2009 Location: Tyler, Texas Posts: 1,575 View My Garage	It's just your car letting all the other nearby cars know who the boss is. __________________ 2SS/RS IBM A6, White Rallies Ordered: 4/30/09 Delivered: 8/18/09 Appearance Mods: Heritage Grille, ZL1 Replica Wheels Performance Mods: Flowmaster ARH Cat-Back Exhaust, ADM CAI, ADM L99-LS3 Conversion, ADM LSA Supercharger Kit, Lingenfelter GT9 Cam, Stainless Power Headers, Detroit Speed Sway Bars, ZL1 Fuel Pump 581 rwhp/535 lb/ft tq

01-03-2013, 02:30 AM	#5
SD2011SS Drives: 2011 Chevrolet Camaro 2SS-RS Join Date: Feb 2012 Location: San Diego, Ca Posts: 542	Its the backfire from the exhaust, unburned gas flowing through the exhaust pipes. I love that sound, especially loud with my long tube headers and high flow cats __________________

01-01-2013, 11:18 AM	#2
bw26ss Banned Drives: ss camaro Join Date: Jul 2012 Location: usa Posts: 876	just wanted to add, that it doesn't do this on an initial cold start, just after the car is warm, like I go to the gas station and get back in my car, start it and it makes the loud pop. Car has done this since new, now has 10k miles.

01-01-2013, 02:14 PM	#3
The Blue Ox Drives: 2010 SS L99 Inferno Orange Join Date: Apr 2012 Location: Texas Coast Posts: 1,167	Common and normal with these type of motors! Some people like it, and some don't !!