Dyno numbers for axle-backs?
 

anybody seen real Dyno numbers for axle-backs all by themselves?
NOT used in conjunction with anything else like a tune, headers, intake... JUST the muffs?

Yes I would be interested in this as well. Im looking at the Borla axle back

im leaning magnaflow or SLP LoudmouthII

I dont think its going to be much of a gain at all, with just an axle back. 2-4hp maybe

From pictures we have seen, the stockers flow pretty well ... I'd think of an axelback as more for sound preference than any real power gain. I'd say 5 or so at best.

Crowley

Cat-back and AXLE-back just looks like a difference in a few feet of tubing to me.
how can the HP #'s be THAT different between the axle vs. cat?

i need an education. what am i missing? (talking LS3)
Thanks!

I say little or no HP increase on Axle-back. Exhaust flow is the around the same except with muff delete. But, I'm willing to bet, with everything stock, you can get another 15 RWHP with a dyno tune.

I think you would be right in saying not much gain from a catback as well. You will see the largest gains from the midsection (cats) forward to the engine (headers).

Crowley

see post #23
http://www.camaro5.com/forums/showth...ight=magnaflow

15HP/18TQ... nothing to laugh at... but who knows whats real?

i'm just trying to figure out if a FULL catback makes ANY sense when the factory stuff is bent so well.

Thanks so much for the input folks!

What you need to know there is that I think that kit includes a catted xpipe. So you do replace the cats, it isn't just a catback system. If this is incorrect, then I am sorry but I believe this is the case and I'm thinking that is where most of that hp and tq came from.

Thanks,
Crowley

i think its a "resonated" x-pipe and not catted.

"MagnaFlow's Stainless Steel Street Series Cat-Back for the 2010 Camaro SS 6.2L V8 Features a resonated X-Pipe, 11" Rear Oval Mufflers and Dual 4" Polished Stainless Steel Tips."

if you scroll up in the linked thread i believe the pics show an exhaust that would be AFTER CATS... i think... LOL (but what do i know)

i guess i could e-mail or call the companies! now there's and idea! (of course i would really rather have real world dyno runs on member's cars)

Lol .. it would be good to know either way as now I am confused :)

Crowley

The MAgnaflow is after the cats. The problem with Dynos is you never really know what variables are making the power.

There are a lot of people going very fast with the stock cans in the back. The only reason I am going to replace the exhaust is for sound. I do think you make power but hell, the LSX motors make more power if you look at them wrong.