To muffler delete or not to delete - Page 6 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

camarossrs2150 · 06-20-2009, 06:59 PM

Quote:

Originally Posted by GoldBowtie

That goes for me too!!

i have a 2ssrs auto sounds great no crackling yet very happy with the sound

lawdogg149 · 06-20-2009, 07:19 PM

Oh well the sound is great to me. Also the power gains are well worth it.

domano 68 · 06-20-2009, 07:58 PM

Quote:

Originally Posted by lawdogg149

Well guys I have tried to become some what of a expert in this field. I ran a base line dyno run of 421 hp and replaced my mufflers with polished stainless and re ran on the same dyno no other changes. Dyno now reads 438.6 hp. That shows the factory mufflers are way to restrictive for this engine. After speaking with some engineers at GM they stated these mufflers were indeed very restrictive by design. I will attach the Final dyno sheet as well. There is no drone on the interstate. Only thing I have noticed is a mild pop on deaccelaration which I love.

Thanks for the info!

hogandtow · 06-20-2009, 08:28 PM

lean at zero throttle ? harleys are real lean from the factory and will pop and crackle when letting off the gas. with a good tuner if you add fuel from zero to 15 percent throttle it will tune right out. i watched the hotchins suspion video and you can hear it. sounds like epa lean to me and i would put my money on a good tune. when mine gets here thats my plan.

Icntdrv55 · 06-20-2009, 09:05 PM

camaro ssrs2150,
Do you have a video or file of the sound? Would love to hear it. Glad to know you aren't hearing any crackling with the auto. Have you donr any other mods besides the muffler delete?

camarossrs2150 · 06-21-2009, 12:35 AM

Quote:

Originally Posted by Icntdrv55

camaro ssrs2150,
Do you have a video or file of the sound? Would love to hear it. Glad to know you aren't hearing any crackling with the auto. Have you donr any other mods besides the muffler delete?

no videos as of yet rainging in neweyork for about 2 days since ive done it . will post when rain stops . have the casr 20 days rained 18 this sucks .

LDGn63 · 06-21-2009, 08:27 AM

Quote:

Originally Posted by camarossrs2150

no videos as of yet rainging in neweyork for about 2 days since ive done it . will post when rain stops . have the casr 20 days rained 18 this sucks .

I'd settle for a bigger shot of that avatar.... (so ima pig)

josh1147 · 06-21-2009, 10:43 AM

There must not be many Harley riders among the commentators in this thread....loud exhaust and popping due to jetting/fuel delivery is just part of the experience!!

BTW, no popping on my LS3 at all with the factory setup....will have to see if it "shows up" after removing the factory suitcases.

prfireman · 06-21-2009, 11:33 AM

Quote:

Originally Posted by josh1147

There must not be many Harley riders among the commentators in this thread....loud exhaust and popping due to jetting/fuel delivery is just part of the experience!!

BTW, no popping on my LS3 at all with the factory setup....will have to see if it "shows up" after removing the factory suitcases.

Thar Harley sound was great rolling down the road but it did get to me, good thing is I can roll up the windows on my IOM RS/SS

LDGn63 · 06-24-2009, 11:24 PM

Did the delete today. Nice sound. Does cackle a lot. Butt dyno tells me I lost some bottom end. WTH???

Mines loud in the car 1-4. Ok in 5. And almost stock sound in 6 at 70mph.

The loss of bottom end concerns me though it doesn't realy make sense!
Have sound clips before/after but keep getting "invald type" when I try to post.

JDP Motorsports · 06-24-2009, 11:30 PM

Quote:

Originally Posted by BumbleBeeSS2009

ZZ looking at the loudmouth I...

Im a bit of a newbie when it comes to stuff like this but from the pictures of the Loudmouth it looks just like a muffler delete...

What am I paying close to $500 for? are they special tubes?

Better off having them cut the mufflers out and go with straight tubes to 4" tips no?

My personal opinion is get a cat-back with mufflers, an X-Pipe wouldn't hurt either. These engines need some back pressure unless you're making 800+ HP. My 525 RWHP 2nd Gen Camaro made less HP without mufflers. I'm now making 1046 RWHP and I'm still running through mufflers, I only use Magnaflow.

You do have the factory converters and resonator that will help with the BP but the sound quality isn't there for me.

JP

2L8IWON · 06-25-2009, 05:55 AM

I hope adding Long tubes, x-pipe and super 40's does the job. I don't really want to be the test guinea pig though. I hope someone tries that before I get my car in two months cause that's what I'm set on doing.

06-20-2009, 08:28 PM	#74
hogandtow Drives: 2010 1ss Join Date: Jun 2009 Location: st. louis mo. Posts: 12	tune lean at zero throttle ? harleys are real lean from the factory and will pop and crackle when letting off the gas. with a good tuner if you add fuel from zero to 15 percent throttle it will tune right out. i watched the hotchins suspion video and you can hear it. sounds like epa lean to me and i would put my money on a good tune. when mine gets here thats my plan.

06-24-2009, 11:24 PM	#80
LDGn63 Drives: WNABEE Join Date: Jan 2009 Location: DFW Posts: 538 View My Garage	Did the delete today. Nice sound. Does cackle a lot. Butt dyno tells me I lost some bottom end. WTH??? Mines loud in the car 1-4. Ok in 5. And almost stock sound in 6 at 70mph. The loss of bottom end concerns me though it doesn't realy make sense! Have sound clips before/after but keep getting "invald type" when I try to post. __________________ 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

06-25-2009, 05:55 AM	#82
2L8IWON Drives: 2010 Chevy Camaro 2SS RS SIM Join Date: Jun 2009 Location: McKinney, TX Posts: 470 View My Garage	I hope adding Long tubes, x-pipe and super 40's does the job. I don't really want to be the test guinea pig though. I hope someone tries that before I get my car in two months cause that's what I'm set on doing. __________________ 2010 Camaro 2SS RS 6M SIM - GFX, Sunroof, Carbon Fiber Dash Kit, ARH Headers, ADM Intake, ADM tune, NLP Dove Tail

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06-20-2009, 07:19 PM	#72
lawdogg149 Drives: Corvette ZO6 CSR edition #47 Join Date: Apr 2009 Location: Calhoun, GA Posts: 766 View My Garage	Oh well the sound is great to me. Also the power gains are well worth it.

06-20-2009, 09:05 PM	#75
Icntdrv55 CCOTR Member Drives: Victory Red 2010 2SS/RS A6 Join Date: Jun 2009 Location: Parker CO Posts: 1,096	camaro ssrs2150, Do you have a video or file of the sound? Would love to hear it. Glad to know you aren't hearing any crackling with the auto. Have you donr any other mods besides the muffler delete?

06-21-2009, 10:43 AM	#78
josh1147 Delivered 29June09 Drives: Early Order Camaro Join Date: Nov 2008 Location: St. Louis, MO Posts: 411 View My Garage	There must not be many Harley riders among the commentators in this thread....loud exhaust and popping due to jetting/fuel delivery is just part of the experience!! BTW, no popping on my LS3 at all with the factory setup....will have to see if it "shows up" after removing the factory suitcases.