Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com - View Single Post - Thinking of Kooks headers with Corsa exhaust... L99 opinions/comments?

SGOS252382 · 11-19-2009, 06:11 PM

Yeah, you MUST get some sort of tune with long tubes if you have an L99. If you don't the AFM noise will drive you crazy.

I just got Kook's 1 7/8 headers, high flow cats, and Magnaflow 2.5'' catback put on my car. Its a nice quiet setup. It sounds real nice and aggressive above 3000 rpms, but at low rpms it real quiet. Its also very quiet at cruise speeds 65mph (no drone of any kind).

But before I got my car tuned (yesterday), the AFM sound was extremely annoying (and my setup is as quiet as you can get with long tubes). Everyone that hears my setup is amazed by how quiet my car is with 1 7/8 headers and high flow cats.

And about your question.
You will definately be annoyed by AFM with a Corsa exhasut and long tubes. You will need to get your car tuned to turn it off.

11-19-2009, 06:11 PM	#3
SGOS252382 Drives: 2010 Camaro 2SS/RS Join Date: Mar 2008 Location: S.W. Florida Posts: 6,294	Yeah, you MUST get some sort of tune with long tubes if you have an L99. If you don't the AFM noise will drive you crazy. I just got Kook's 1 7/8 headers, high flow cats, and Magnaflow 2.5'' catback put on my car. Its a nice quiet setup. It sounds real nice and aggressive above 3000 rpms, but at low rpms it real quiet. Its also very quiet at cruise speeds 65mph (no drone of any kind). But before I got my car tuned (yesterday), the AFM sound was extremely annoying (and my setup is as quiet as you can get with long tubes). Everyone that hears my setup is amazed by how quiet my car is with 1 7/8 headers and high flow cats. And about your question. You will definately be annoyed by AFM with a Corsa exhasut and long tubes. You will need to get your car tuned to turn it off.