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

VenomZ302 · 02-19-2009, 03:44 PM

Mods, feel free to move this if need be. I'm not sure where to put it. I also didn't find this through a brief search, so if a merge is needed, feel free.

Does the Catback Exhaust add-on do anything to the HP and/or, potentially, the mileage that you'd get?

mitchell87 · 02-19-2009, 03:59 PM

Maybe a few HP, nothing that your butt dyno will notice, but it will sound meaner

GOT PSI · 02-19-2009, 04:03 PM

I can't wait for a good exhaust sound video. Aftermarket or stock.

VJCamaro · 02-19-2009, 04:09 PM

I've heard it could add as much as 15-20hp. And the sound will be significantly different than stock. I will wait though, I might go with another brand if it does not affect the warranty. It shouldn't tho!

CamaroSkooter · 02-19-2009, 04:35 PM

I imagine the GMPP catback exhaust and shorty headers will add some HP. What the numbers are, who knows, but it sure beats throwing something on that quite possibly could void the warranty somehow.

GOT PSI · 02-19-2009, 04:41 PM

Quote:

Originally Posted by CamaroSkooter

I imagine the GMPP catback exhaust and shorty headers will add some HP. What the numbers are, who knows, but it sure beats throwing something on that quite possibly could void the warranty somehow.

It shouldn't affect the waranty. My friend has a balt ss w/ hahn exhaust and has never had an issue w/ his waranty.

SGOS252382 · 02-19-2009, 05:26 PM

Quote:

Originally Posted by VJCamaro

I've heard it could add as much as 15-20hp. And the sound will be significantly different than stock. I will wait though, I might go with another brand if it does not affect the warranty. It shouldn't tho!

Catbacks are mostly for sound.
In my experience with LSX vehicles (94 Z28, 99Z28, 05 GTO, 06 GTO), you usually see about 5-8hp from a catback exhaust on an otherwise stock car. It all depends on how restrictive the stock exhaust is.

More significant gains come with headers and high flow cats or race pipe alone with tuning.

Rodrunner · 02-19-2009, 06:35 PM

Yeah, I've seen stated here maybe 5-7hp. But I'm getting it for the sound and because the mufflers won't show from the rear like the ugly, large stock ones.

GM'r_For_Life · 02-19-2009, 06:49 PM

Will The GMPP catback only be the mufflers and tailpipes with the larger tips?
Or will it be different pipes all the way up to the catalitic converter?

Warghost · 02-20-2009, 10:52 AM

On an engine that's running 426Hp stock, you should definitely see more than 5-7HP. It's usually a percentage of the engine's original output power. That's why they can claim up to 30-40HP increases, because they place a restrictive exhaust on a Viper, test it, place in a less restrictive system, and test it again. Different gains on different vehicles. I am expecting the SS Camaro to see 15-20HP with a full catback system. I hope so, anyway.

toehead93 · 02-20-2009, 02:17 PM

The gains depend on how restrictive the stock is to begin with so it's not always the same percentage. If the the stock system is restrictive +15-20hp on a cat-back system could be seen, but if the stock system is less restrictive than the prvious F-bodies then maybe we will only see 7-10hp. It's too early to tell until someone can test the car.

JMAN311 · 02-20-2009, 02:49 PM

Anyone that thinks they will be seeing 15-20hp on the Camaro by just replacing the stock cat-back is going to be really disappointed. The only way you'll be getting numbers at or over 20+ is with a full system (headers/x-pipe w/ high flow cats/cat-back).

VictoryRed08 · 02-20-2009, 03:17 PM

From what i've heard from videos on the v6's exhaust i don't think i'd replace the exhaust, it already sounds like it has one on there. Man i love it.

Edrock · 02-20-2009, 03:23 PM

Just rip out the stock exhaust and slap in a couple of big-ole fart cans. That'll give you at least another 85 HP....apiece!! Woohoo!!

Can you imagine what that would sound like??

02-19-2009, 03:44 PM	#1
VenomZ302 Live to Win, Dare to Fail Drives: 2010 Aqua Blue RS/SS M6 Join Date: Nov 2008 Location: Charleston, SC Posts: 1,824 View My Garage	Catback Exhaust Mods, feel free to move this if need be. I'm not sure where to put it. I also didn't find this through a brief search, so if a merge is needed, feel free. Does the Catback Exhaust add-on do anything to the HP and/or, potentially, the mileage that you'd get? __________________ 3/13/09 - Ordered Aqua Blue Metallic 2SS/RS M6! 7/13/09 - Built! 8/11/09 - Delivered! 2G1FT1EW2A9124579

02-19-2009, 04:03 PM	#3
GOT PSI Drives: SRT-4 Join Date: May 2008 Location: El Paso Posts: 122	I can't wait for a good exhaust sound video. Aftermarket or stock. __________________ I am a power junkie, and forced induction is my fix.

02-19-2009, 06:35 PM	#8
Rodrunner Senior Member Drives: 2010 SS/RS, '06 350Z Join Date: Oct 2008 Location: So. Maryland Posts: 2,333	Yeah, I've seen stated here maybe 5-7hp. But I'm getting it for the sound and because the mufflers won't show from the rear like the ugly, large stock ones. __________________ 2SS/RS - Black/Black - CGM Rally Stripes - Auto - VIN 10171

02-20-2009, 02:49 PM	#12
JMAN311 Drives: 2013 F-150 Limited Join Date: May 2008 Location: Parker, CO Posts: 2,191	Anyone that thinks they will be seeing 15-20hp on the Camaro by just replacing the stock cat-back is going to be really disappointed. The only way you'll be getting numbers at or over 20+ is with a full system (headers/x-pipe w/ high flow cats/cat-back). __________________ There just might be a 2016 Camaro or Corvette in my future... _____________________________________________ Previous Chevy's 2013 Camaro ZL1 A6\|SIM 2010 Camaro 2SS/RS\|M6\|CGM Exterior\|Gray Int 2000 Camaro SS\|M6\|SLP headers\|SLP center mounted quad exhaust\|Magnaflow muffler\|Hypertech programmed 2001 Corvette\|M6\|LG Motorsports Headers\|Corsa Touring Cat-back\|Magnaflow X Pipe\|Hurst short-throw\|Dyno tuned

02-20-2009, 03:17 PM	#13
VictoryRed08 Drives: 08 Cobalt LT2, Join Date: Dec 2008 Location: Ontario Posts: 224	From what i've heard from videos on the v6's exhaust i don't think i'd replace the exhaust, it already sounds like it has one on there. Man i love it. __________________ Need a website? Help me pay for a Camaro (lol):http://www.jtwebdesign.ca

02-19-2009, 03:59 PM	#2
mitchell87 Drives: 2010 Silverado 6.2L Join Date: Dec 2008 Location: Bismrarck, ND Posts: 196	Maybe a few HP, nothing that your butt dyno will notice, but it will sound meaner

02-19-2009, 04:09 PM	#4
VJCamaro Please not have any Delay Drives: 2SS, RS, Sunroof, Polished Join Date: Jan 2009 Location: Hammond, LA Posts: 205	I've heard it could add as much as 15-20hp. And the sound will be significantly different than stock. I will wait though, I might go with another brand if it does not affect the warranty. It shouldn't tho!

02-19-2009, 04:35 PM	#5
CamaroSkooter Retarded One-Legged Owl Drives: 2010 Black Camaro 2SS Join Date: Oct 2008 Location: San Antonio, TX Posts: 9,745	I imagine the GMPP catback exhaust and shorty headers will add some HP. What the numbers are, who knows, but it sure beats throwing something on that quite possibly could void the warranty somehow.

02-19-2009, 06:49 PM	#9
GM'r_For_Life 9A108207 Drives: 95 S10 Join Date: Jan 2009 Location: NE Indiana Posts: 200	Will The GMPP catback only be the mufflers and tailpipes with the larger tips? Or will it be different pipes all the way up to the catalitic converter?

02-20-2009, 10:52 AM	#10
Warghost Drives: Camaros & Mustangs Join Date: Apr 2007 Location: Port St Lucie, FL. Posts: 168	On an engine that's running 426Hp stock, you should definitely see more than 5-7HP. It's usually a percentage of the engine's original output power. That's why they can claim up to 30-40HP increases, because they place a restrictive exhaust on a Viper, test it, place in a less restrictive system, and test it again. Different gains on different vehicles. I am expecting the SS Camaro to see 15-20HP with a full catback system. I hope so, anyway.

02-20-2009, 02:17 PM	#11
toehead93 Drives: 2014 2SS/1LE Join Date: Feb 2007 Location: wpb fl Posts: 3,136 View My Garage	The gains depend on how restrictive the stock is to begin with so it's not always the same percentage. If the the stock system is restrictive +15-20hp on a cat-back system could be seen, but if the stock system is less restrictive than the prvious F-bodies then maybe we will only see 7-10hp. It's too early to tell until someone can test the car.

02-20-2009, 03:23 PM	#14
Edrock Drives: '10 Camaro 2SS LS3 Join Date: Jan 2009 Location: Jamestown, NC Posts: 964 View My Garage	Just rip out the stock exhaust and slap in a couple of big-ole fart cans. That'll give you at least another 85 HP....apiece!! Woohoo!! Can you imagine what that would sound like?? __________________ DT Shorties, Solo hi-flow Cats, X-pipe, resonator delete, Flowmaster Super-44s, VMAX TB, Stronger MAF, C.A.I. Intake with race scoop, and JRE Tune! WOT is my happy place!!

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