Exhaust Questions/Opinions - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Backspin9 · 06-03-2015, 06:25 AM

I was going to put an axle back on my LT/RS. Looked at tons of video, read a thousand posts, and made some calls. I had narrowed it down to either a MRT V2 or Dynomax. From all I found out, apparently, there is no real advantage to an aftermarket axle back other than sound. All the manufacturers claim increased performance, but the people I spoke to said that's not the case. Has anyone put one on and gotten better performance out of it?

As much as I'd like to do this, I've been told it would be better to save the $500+ that an axle back would cost and put it towards a cat back with high flow cats. I don't really want it excessively loud, but would like a little better performance.

It has a Roto-Fab CAI and the exhaust is the only other thing I wanted to do, but at this point I'm not really sure which way to go.

arkentect · 06-03-2015, 07:37 AM

This was the video that made up my mind. An after market exhaust is not going to give you any noticeable HP or Torque gains. You might gain 5-10hp but you wont truly notice it.

Apex Motorsports · 06-03-2015, 08:17 AM

You will drop a little weight but you will not gain any power from a cat back or axle back. High flow cats will add sound and power.

Backspin9 · 06-04-2015, 10:26 AM

I found a great deal on a Dynomax Ultra-Flo axle back system for $269 brand new. Having it installed by my guy at Chevy next week. I listened to the sound clips and it seems good -- not too loud and will look nice in place of the suitcase mufflers. I figured for that price it's not much of a gamble.

It seems odd to me but the guy I work with at my Chevy dealer loves doing this kind of stuff. You wouldn't think a Chevy dealer would install aftermarket stuff, but these guys do. They also installed a Roto-Fab CAI and did a great job. I could do it myself, but for what they charge it's worth having them do it in case something should go wrong.

06-03-2015, 06:25 AM	#1
Backspin9 Drives: The red one Join Date: Jan 2015 Location: Henderson, NV Posts: 317	Exhaust Questions/Opinions I was going to put an axle back on my LT/RS. Looked at tons of video, read a thousand posts, and made some calls. I had narrowed it down to either a MRT V2 or Dynomax. From all I found out, apparently, there is no real advantage to an aftermarket axle back other than sound. All the manufacturers claim increased performance, but the people I spoke to said that's not the case. Has anyone put one on and gotten better performance out of it? As much as I'd like to do this, I've been told it would be better to save the $500+ that an axle back would cost and put it towards a cat back with high flow cats. I don't really want it excessively loud, but would like a little better performance. It has a Roto-Fab CAI and the exhaust is the only other thing I wanted to do, but at this point I'm not really sure which way to go.

06-03-2015, 08:17 AM	#3
Apex Motorsports Drives: 2000 Camaro SS Join Date: Feb 2010 Location: Louisville, Ky. Posts: 25,179	You will drop a little weight but you will not gain any power from a cat back or axle back. High flow cats will add sound and power.

06-04-2015, 10:26 AM	#4
Backspin9 Drives: The red one Join Date: Jan 2015 Location: Henderson, NV Posts: 317	I found a great deal on a Dynomax Ultra-Flo axle back system for $269 brand new. Having it installed by my guy at Chevy next week. I listened to the sound clips and it seems good -- not too loud and will look nice in place of the suitcase mufflers. I figured for that price it's not much of a gamble. It seems odd to me but the guy I work with at my Chevy dealer loves doing this kind of stuff. You wouldn't think a Chevy dealer would install aftermarket stuff, but these guys do. They also installed a Roto-Fab CAI and did a great job. I could do it myself, but for what they charge it's worth having them do it in case something should go wrong.