Leave your stock mufflers -WHY! - Page 11 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Stingray · 11-26-2012, 06:21 PM

Quote:

Originally Posted by PC HOTROD

Just ask John Hennessey... his cars make some serious HP with the stock mufflers in place....

I can only imagine without... not really just for increased HP but for the aural pandemonium from a good set of aggressive aftermarket catbacks.

nyrfan · 11-26-2012, 06:33 PM

Interesting thread.

Sent from my 2SS/RS via Tapatalk

Anthony @ LG Motorsports · 11-26-2012, 06:47 PM

1. They are heavy
2. They hold water
3. They are only 2.5"
4. Style of a new tip.

While it is true that they do work well, but the weight that is lost going aftermarket and the gains by going to a full 3" out weigh the stock mufflers. Those wanting to keep the car quieter, I would retain the stock ones...

james347 · 11-26-2012, 06:48 PM

LTH + SLP Loud Mouth II w/4" tip =

VADER SS L99 · 11-26-2012, 08:54 PM

Yep, if I had it to do over again I would have pocketed the 1k in cat back cost until after I get supercharged. At which time I would have gone full 3inch. Now if I decide to get 3inch after the Whipple I will have to spend another 1k. I hate buying parts twice. Other than weight, appearence, and different sound there is no power to gain from a catback under 450rwhp and even then at that point you need a 3inch system to see any gains..

con10der · 11-26-2012, 09:45 PM

I tend to agree that the stock mufflers do not perform as a "straight thru" muffler. I just done a muffler delete, and I can tell you from experience, my SS FLOWS now. I also agree that claims of 17hp gain is also a bit extravagant...but my butt dyno doesn't lie...there is an increase.

fldrummer · 11-26-2012, 11:50 PM

'First thing I said when I picked up my SS (and that was before there were many, if any exhaust options) was "GET THOSE GARBAGE CANS OFF MY CAR!" LOL. Man, those things are fuuuuugly; I don't care how good they flow.

'Not sure how accurate the old scale was in the exhaust shop, but according to the scale, they weighed 18 lbs. each. 'Did a muffler delete and have no regrets, even though I eventually switched to a full exhaust a couple years later. 'Sounded good with the muffler delete; now it's awesome, like music to my ears, with cam & headers/3-inch exhaust!

axis · 11-27-2012, 12:16 AM

Quote:

Originally Posted by con10der

I tend to agree that the stock mufflers do not perform as a "straight thru" muffler. I just done a muffler delete, and I can tell you from experience, my SS FLOWS now. I also agree that claims of 17hp gain is also a bit extravagant...but my butt dyno doesn't lie...there is an increase.

Your butt dyno must be better calibrated than MULTIPLE dynos.

family man · 11-27-2012, 07:47 AM

I don't trust a butt dynos, they have cracks in them.

Smirnoff · 11-27-2012, 08:55 AM

Quote:

Originally Posted by VADER SS L99

Yep, if I had it to do over again I would have pocketed the 1k in cat back cost until after I get supercharged. At which time I would have gone full 3inch. Now if I decide to get 3inch after the Whipple I will have to spend another 1k. I hate buying parts twice. Other than weight, appearence, and different sound there is no power to gain from a catback under 450rwhp and even then at that point you need a 3inch system to see any gains..

3 inch or stock, buy once - not many times......

midnighter · 11-27-2012, 09:09 AM

I love my Corsa catback exhaust regardless of power increase or lack there of.

Cajun8 · 11-27-2012, 10:36 AM

Quote:

Originally Posted by fldrummer

1. They're ugly as sin (that alone is reason enough)!

2. Too quiet and tame.

3. More unnecesarry dead weight (18 lbs. each).

"DITTO!!!"

el ess A · 11-27-2012, 11:36 AM

Quote:

Originally Posted by family man

I don't trust a butt dynos, they have cracks in them.

That's funny right there, I don't care who you are.

redhotcandy · 11-27-2012, 11:45 AM

Is there anything that can be done with the stock mufflers besides throwing them out? I have two that are laying around the garage taking up space.

They've been cut off for an axleback install.

11-26-2012, 06:33 PM	#142
nyrfan Let's go Rangers! Drives: 13' AGM 2SS/RS L99 Join Date: Jun 2011 Location: Orlando, FL Posts: 10,742 View My Garage	Interesting thread. Sent from my 2SS/RS via Tapatalk __________________ Soprano 4/1/00-6/14/11, Gone but NEVER forgotten! FSP tuned: 377/389

11-26-2012, 08:54 PM	#145
VADER SS L99 Drives: 2013 A6 GT 5.0 Join Date: Nov 2009 Location: Edmond, OK Posts: 2,909	Yep, if I had it to do over again I would have pocketed the 1k in cat back cost until after I get supercharged. At which time I would have gone full 3inch. Now if I decide to get 3inch after the Whipple I will have to spend another 1k. I hate buying parts twice. Other than weight, appearence, and different sound there is no power to gain from a catback under 450rwhp and even then at that point you need a 3inch system to see any gains.. __________________ BLK/BLK 1SS/RS Ordered 11-01-2009 Took delivery 12-22-2009. Heads/cam/converter/bolt ons. SOLD Feb 2015 to fund 6th gen LT1 SS with 8L90E.

11-26-2012, 09:45 PM	#146
con10der Con10der Drives: 2010 2SS/RS M6 IOM Rally Stripes Join Date: Aug 2012 Location: Carlsbad, New Mexico Posts: 97 View My Garage	I tend to agree that the stock mufflers do not perform as a "straight thru" muffler. I just done a muffler delete, and I can tell you from experience, my SS FLOWS now. I also agree that claims of 17hp gain is also a bit extravagant...but my butt dyno doesn't lie...there is an increase. __________________ 2010 2SS/RS M6 IOM w/Rally Stripes. BLK CAI w/ADM,WW Relo,2" Kooks,3" Cats-Mids,Vmax Ported TB,Muff Del,Janetty SCT Tuned,Drill/Slot BLK Hawk rotors,Red Grani Brake Lines,Motul 600,IDEAL Master w/res,Moroso CC,Accel Silver Tips w/TVolt 10.4mm,MGW shift w/Retro hand/ball,ABL Kit,Billet/IOM pedals, ZL1 split,Lloyds SS mats,PC Droid4/MAXX docking,HW Solo2. Pend Install: Launch/Shift Light,BMR Susp/1" Drop/Sways/Track Pack,GM 3.9. Future: Janetty Pumpkin w/PosiTrac,1400HP axl,CF DS,Tick Stage 2 Trans,3 Disc Clutch,4"quad tip,center exit AB w/diff...

11-26-2012, 11:50 PM	#147
fldrummer "Black Ace" Drives: Supercharged 2010 SS, 2016 Golf R Join Date: Aug 2008 Location: Ft. Lauderdale, FL Posts: 1,350	'First thing I said when I picked up my SS (and that was before there were many, if any exhaust options) was "GET THOSE GARBAGE CANS OFF MY CAR!" LOL. Man, those things are fuuuuugly; I don't care how good they flow. 'Not sure how accurate the old scale was in the exhaust shop, but according to the scale, they weighed 18 lbs. each. 'Did a muffler delete and have no regrets, even though I eventually switched to a full exhaust a couple years later. 'Sounded good with the muffler delete; now it's awesome, like music to my ears, with cam & headers/3-inch exhaust! __________________ 2010 2SS/RS M6 "Black Ace" - Delivered 6/4/2009 Mods: Forged 416 LS3, Maggie TVS 2300 SC (~11 psi), custom cam (232/247, .630/.630, 118 LSA), 90-lb. injectors, ZL1 fuel pump & ADM controller, Alky Control meth kit, Monster LT1-SC twin-disk clutch, ZL1 drivetrain conversion w/ DSS 1000-HP axles & 1-pc. driveshaft, CAI Inc. intake w/ ADM scoop, XS Power full exhaust (1 7/8" LT headers with 3" off-road pipes), VMAX CNC-ported TB, LSR adjustable sway bars, LPE rear end-links, BMR 1" drop, BMR polyurethane bushings; UMI trailing arms & toe rods. Built & tuned by Kraftworks. 755 rwhp/708 rwtq

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11-26-2012, 06:47 PM	#143
Anthony @ LG Motorsports Drives: 1994 1LE / 2006 Z51 Corvette Join Date: Jul 2009 Location: Plano, TX Posts: 2,829	1. They are heavy 2. They hold water 3. They are only 2.5" 4. Style of a new tip. While it is true that they do work well, but the weight that is lost going aftermarket and the gains by going to a full 3" out weigh the stock mufflers. Those wanting to keep the car quieter, I would retain the stock ones...

11-26-2012, 06:48 PM	#144
james347 Drives: 2006 Crownline Join Date: May 2012 Location: . Posts: 700	LTH + SLP Loud Mouth II w/4" tip =

11-27-2012, 07:47 AM	#149
family man Drives: . Join Date: Nov 2012 Location: . Posts: 1,085	I don't trust a butt dynos, they have cracks in them.

11-27-2012, 09:09 AM	#151
midnighter Account Suspended Drives: nothing Join Date: Nov 2010 Location: a hole Posts: 17,904	I love my Corsa catback exhaust regardless of power increase or lack there of.

11-27-2012, 11:45 AM	#154
redhotcandy Drives: 2012 2SS/RS Join Date: Jul 2011 Location: The Great Plains Posts: 568 View My Garage	Is there anything that can be done with the stock mufflers besides throwing them out? I have two that are laying around the garage taking up space. They've been cut off for an axleback install.