Dyno numbers for axle-backs? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

LDGn63 · 07-06-2009, 04:29 PM

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?

Jeffro19 · 07-06-2009, 04:43 PM

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

LDGn63 · 07-08-2009, 09:35 AM

Quote:

Originally Posted by 2010SS6SPD

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

im leaning magnaflow or SLP LoudmouthII

SMGSS · 07-08-2009, 12:12 PM

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

Crowley · 07-08-2009, 12:25 PM

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

LDGn63 · 07-08-2009, 01:34 PM

Quote:

Originally Posted by SMGSS

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

Quote:

Originally Posted by Crowley

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!

Flyingdog1 · 07-08-2009, 01:52 PM

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.

Crowley · 07-08-2009, 02:09 PM

Quote:

Originally Posted by LDGn63

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 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

LDGn63 · 07-08-2009, 04:04 PM

Quote:

Originally Posted by Crowley

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!

Crowley · 07-08-2009, 04:09 PM

Quote:

Originally Posted by LDGn63

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

LDGn63 · 07-08-2009, 04:33 PM

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)

Crowley · 07-08-2009, 05:38 PM

Quote:

Originally Posted by LDGn63

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

slowerthanu · 07-08-2009, 06:20 PM

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.

07-06-2009, 04:29 PM	#1
LDGn63 Drives: WNABEE Join Date: Jan 2009 Location: DFW Posts: 538 View My Garage	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? __________________ Why oh Why? Windshield=10" vertical mirror= 3 7/8" (that's almost 4") vertical that means that the mirror is 38.75% the size of the vertical windshield... it sure seems like the ratio could be better... just sayin.... our collective MIRROR patch: http://www.camaro5.com/forums/showthread.php?t=24612

07-08-2009, 12:25 PM	#5
Crowley Okie doke Drives: 2012 GT500 Join Date: Sep 2008 Location: McKinney Texas Posts: 3,568 View My Garage	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 __________________

07-08-2009, 04:33 PM	#11
LDGn63 Drives: WNABEE Join Date: Jan 2009 Location: DFW Posts: 538 View My Garage	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) __________________ Why oh Why? Windshield=10" vertical mirror= 3 7/8" (that's almost 4") vertical that means that the mirror is 38.75% the size of the vertical windshield... it sure seems like the ratio could be better... just sayin.... our collective MIRROR patch: http://www.camaro5.com/forums/showthread.php?t=24612

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07-06-2009, 04:43 PM	#2
Jeffro19 Drives: 2018 ZL1 6M, Silverado High Country Join Date: Oct 2008 Location: San Antonio, Tx Posts: 2,101	Yes I would be interested in this as well. Im looking at the Borla axle back __________________ Previous Camaro's - 2002 Z28 6 spd manual, T tops, Sebring Silver - 2010 2SS 6 spd manual, Cyber Gray Metallic Current Vehicles - 2018 ZL1 Red Hot 6 spd manual, Carbon Hood, Sunroof 2019 Silverado High Country, Daily Driver

07-08-2009, 12:12 PM	#4
SMGSS Drives: 00 SS, 67 SS Join Date: Jun 2009 Location: Rochester, NY Posts: 251	I dont think its going to be much of a gain at all, with just an axle back. 2-4hp maybe

07-08-2009, 01:52 PM	#7
Flyingdog1 Drives: 2010 Camaro SS/RS 6M SIM Join Date: Jul 2009 Location: Ft. Worth, TX Posts: 96	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.

07-08-2009, 06:20 PM	#13
slowerthanu Drives: 2ss on order, 06 f-150 Join Date: Jun 2009 Location: Utah Posts: 42	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.