L99 Corsa Exhaust Sound? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

VALOR · 08-09-2009, 12:32 AM

Anyone else get a weird sound out of the Corsa catback exhaust when your not hitting the gas. Sounds like a hmmmmmmmmmmmmming sound! Think it has to do with the AFM. Driving me crazy.

Also, not a loud as I thought it would be -- pretty tame. If I throw on some LT headers, think the car will sound more aggressive?

Thanks fellas.

*mlee* · 08-09-2009, 01:05 AM

Probably AFM... Mine is sort of a groan sound between 1500 -1800 RPM. The fact that it's going in and out of AFM and I know it is what drives me crazy... The sound is very mimimal.

Definitely not a loud system until you go WOT... then it wakes up. I waited on Headers because I didn't want to get too loud but now it looks like I can have my cake and eat it too as I do want the extra horses that headers will get me.

Should be a good combo although AFM may get worse unless tuned out...

VALOR · 08-09-2009, 11:30 AM

Yeah, we'll definately have to get this tuned out once we get the headers.

*mlee* · 08-09-2009, 11:39 AM

My thoughts exactly....

VALOR · 08-10-2009, 12:31 AM

Anyone know how much a good dyno tune is going for in CA?

08-09-2009, 12:32 AM	#1
VALOR Drives: L99 cyber grey Join Date: Aug 2009 Location: san jose Posts: 145	L99 Corsa Exhaust Sound? Anyone else get a weird sound out of the Corsa catback exhaust when your not hitting the gas. Sounds like a hmmmmmmmmmmmmming sound! Think it has to do with the AFM. Driving me crazy. Also, not a loud as I thought it would be -- pretty tame. If I throw on some LT headers, think the car will sound more aggressive? Thanks fellas.

08-09-2009, 01:05 AM	#2
mlee CamaroFans.com Drives: ZLE & ZR2 Join Date: Oct 2008 Location: Conroe, TX Posts: 37,971 View My Garage	Probably AFM... Mine is sort of a groan sound between 1500 -1800 RPM. The fact that it's going in and out of AFM and I know it is what drives me crazy... The sound is very mimimal. Definitely not a loud system until you go WOT... then it wakes up. I waited on Headers because I didn't want to get too loud but now it looks like I can have my cake and eat it too as I do want the extra horses that headers will get me. Should be a good combo although AFM may get worse unless tuned out... __________________

08-09-2009, 11:39 AM	#4
mlee CamaroFans.com Drives: ZLE & ZR2 Join Date: Oct 2008 Location: Conroe, TX Posts: 37,971 View My Garage	My thoughts exactly.... __________________

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08-09-2009, 11:30 AM	#3
VALOR Drives: L99 cyber grey Join Date: Aug 2009 Location: san jose Posts: 145	Yeah, we'll definately have to get this tuned out once we get the headers.

08-10-2009, 12:31 AM	#5
VALOR Drives: L99 cyber grey Join Date: Aug 2009 Location: san jose Posts: 145	Anyone know how much a good dyno tune is going for in CA?