Muffler Delete - Page 2 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

drperry · 10-08-2009, 04:37 AM

If there's 3 cats... How many oxygen sensors is there? :o

chris rs ss · 10-08-2009, 07:11 AM

Actually 4 cats and two sensors. Deleting mufflers will not affect inspections or emmisions in Va. Could only get a ticket for noise. Thats it.

Camar0wn3d · 10-08-2009, 07:22 AM

Quote:

Originally Posted by mc130j

I have heard the same thing, but can not find any detailed info on the tune itself. Has anyone actually had any luck tuning away the popping? If so, can you provide some details? I would love to reduce / eliminate the popping…

The SLP loud mouth 1 is an axle back system that is nothing more than a muffler delete. They say it is 50 states legal on the web site for those that are worried about state laws against muffler delete...

Mike

I tuned out my decel popping this morning. Worked great - NO MORE POPPING/BURBLING/GARGLING! The problem is with the DFCO feature (Deceleration Fuel Cutoff). You can disable it by modifying parameters (like engine coolant enable temperature, enable RPM) such that it will never see those conditions (480 degrees F, 8000 RPM).

Disabling DFCO isn't the BEST way to do it, (the best way involves a LOT more trial & error work) but it definitely shuts it up.

I might just sell my LMII now and put my muffler delete straight pipes back on now.

eddie SS · 10-08-2009, 10:00 AM

Good info. I'm going to try the muffler delete. Thanks.

drperry · 10-08-2009, 01:59 PM

Pre-cats and main cats like the S-series vehicles, or 4 full sized cats?

If it's like the s-series, then the pre-cats can be removed without any problems... They're only there to warm up the car a little faster for emissions testing.

thebrainhart · 10-08-2009, 11:17 PM

I did the muffler delete on my L99 a few weeks ago, really like it
http://www.camaro5.com/forums/showthread.php?t=43409

Technically (with the L99, with the 4 cats, 1 resonator, and 2 mufflers), if you remove the mufflers, the resonator still remains. The resonator is basically a sound muffling device, which is what most laws require. So technically you still have a sound muffler, and can stay legal.

And I personally like the popping at startup, when decelerating, and revving. It sounds like a muscle car, which if I remember right, the Camaro is.

Ronin_2SS · 10-09-2009, 01:47 AM

hmm odd here in cali we have some of the most strict emission codes around. but a muffler delete will not fail you in inspection. only if you remove any emission related parts...ie primary and secondary cats. the mufflers and resonators are for sound not emissions so a muffler delete should be fine. Unless some states have a code about vehicle noise. I know here in cali cars are not allowed to go above a certain decible level (which is harldy ever enforced) mainly used to target imports. Ive had the mufflers removed on my ss and its awesome, really makes the car sound more like a muscle car. Even the dealership said its no big deal.

Mzodarg · 10-09-2009, 04:36 AM

Quote:

Just drove the car. It sounds great. And only $170 bucks. Can't beat it.

Seems expensive, I had mine done for $60.00. Just my experience.

Mike

towmoe · 10-09-2009, 12:35 PM

Quote:

Originally Posted by Mzodarg

Seems expensive, I had mine done for $60.00. Just my experience.

Mike

Where did you get yours done?

DarricSS · 10-09-2009, 04:19 PM

Just did the Muffler Delete at Mesa Muffler in Mesa Arizona Cost $140 and took about an hour.

OMG! Now THIS is what the car should sound like! If you think you get allot of looks now, just wait till people notice you from the sound! I have people on the freeway now giving me a thumbs up becasue it sounds so good.

The engine rev's allot smoother and when shifting gears the rpms hardly drop at all now.

And the Decel popping sounds cool IMO...

The stock mufflers are pretty heavy my calibrated hands say they weigh between 20-25lbs each and taking the mufflers out probably added some HP.

Save your money and delete the mufflers...DO IT~!

franknbeans · 10-09-2009, 04:29 PM

I have the Magna Flow Street series, I am considering removing the front muffler and putting in a X pipe or just removing the back and doing a straight pipe.... Hummmm

thebrainhart · 10-09-2009, 09:22 PM

Quote:

Originally Posted by Mzodarg

Seems expensive, I had mine done for $60.00. Just my experience.

Mike

Mine was around $150 too, cant remember, but that included a couple of nice $40ea tips. Thats where the money is spent
They look 241% better than the stock ones.

towmoe · 10-10-2009, 09:19 AM

Has anyone done a dyno, before and after a muffler delete? I curious if there are any gains...

DarricSS · 10-10-2009, 09:33 AM

Quote:

Originally Posted by towmoe

Has anyone done a dyno, before and after a muffler delete? I curious if there are any gains...

Here is a muffler Delete dyno run.

It probably adds a few HP, but it's mostly for allot of 6.2L V/8 sound...

http://www.camaro5.com/forums/showthread.php?t=46244

10-08-2009, 10:00 AM	#18
eddie SS ALWAYS A MARINE......!!! Drives: 2010 camaro IOM/2SS/RS/sunroof Join Date: Aug 2009 Location: Brooklyn, New York Posts: 268 View My Garage	Good info. I'm going to try the muffler delete. Thanks. __________________ She's finally home: 09/18/09 Mods so far: SOLO Performance MACH XL cat-back exhaust, NOWEEDS exhaust diverters, Tinted windows, gas cap decal, bow tie black outs, Cold Air Inc CAI, Eibach Pro kit lowering springs Mods I have but not installed yet: rear trunk black out, Diablosport Trinity Future Mods: ARH long tube w/ high flow cats or Dynatech's SuperMaXX long tube w/ high flow cats, Maggie S/C

10-08-2009, 11:17 PM	#20
thebrainhart Drives: '10 Camaro 2SS/RS CGM LS3 A6 Join Date: May 2009 Location: Bountiful, UT Posts: 683	I did the muffler delete on my L99 a few weeks ago, really like it http://www.camaro5.com/forums/showthread.php?t=43409 Technically (with the L99, with the 4 cats, 1 resonator, and 2 mufflers), if you remove the mufflers, the resonator still remains. The resonator is basically a sound muffling device, which is what most laws require. So technically you still have a sound muffler, and can stay legal. And I personally like the popping at startup, when decelerating, and revving. It sounds like a muscle car, which if I remember right, the Camaro is. __________________ - 2010 Camaro 2SS/RS CGM LS3 A6 "Lurch" - FLYNGSS - Some ProCharger, Alky, CompCams, Brian Tooley, Holley, Livernois, K&N, Ridetech, DSS, Kooks, JDP Motorsports, Pfadt, BMR, Prothane, Weld, M&H, Mickey Thompson, RKSport, Elite, Garys, Defenderworx, Anvil, etc.

10-09-2009, 01:47 AM	#21
Ronin_2SS Loving My LS3 Drives: 2010 Summit white 2SS Join Date: Jul 2009 Location: Modesto CA Posts: 828 View My Garage	hmm odd here in cali we have some of the most strict emission codes around. but a muffler delete will not fail you in inspection. only if you remove any emission related parts...ie primary and secondary cats. the mufflers and resonators are for sound not emissions so a muffler delete should be fine. Unless some states have a code about vehicle noise. I know here in cali cars are not allowed to go above a certain decible level (which is harldy ever enforced) mainly used to target imports. Ive had the mufflers removed on my ss and its awesome, really makes the car sound more like a muscle car. Even the dealership said its no big deal. __________________

10-09-2009, 04:19 PM	#24
DarricSS Drives: '10 Camaro SS Join Date: Apr 2009 Location: Gilbert, Arizona Posts: 1,047	Just did the Muffler Delete at Mesa Muffler in Mesa Arizona Cost $140 and took about an hour. OMG! Now THIS is what the car should sound like! If you think you get allot of looks now, just wait till people notice you from the sound! I have people on the freeway now giving me a thumbs up becasue it sounds so good. The engine rev's allot smoother and when shifting gears the rpms hardly drop at all now. And the Decel popping sounds cool IMO... The stock mufflers are pretty heavy my calibrated hands say they weigh between 20-25lbs each and taking the mufflers out probably added some HP. Save your money and delete the mufflers...DO IT~! __________________ 2010, SIM, 2SS/RS, LS3, CGM Stripes

10-09-2009, 04:29 PM	#25
franknbeans Whipped Drives: 2010 CAMARO Join Date: Sep 2008 Location: Pittsburgh-ish - PA Posts: 4,216 View My Garage	I have the Magna Flow Street series, I am considering removing the front muffler and putting in a X pipe or just removing the back and doing a straight pipe.... Hummmm __________________ Car of the week 7/7/14

10-08-2009, 04:37 AM	#15
drperry Drives: Chevy Blazer Join Date: Sep 2009 Location: Grande Prairie, AB Posts: 300	If there's 3 cats... How many oxygen sensors is there? :o

10-08-2009, 07:11 AM	#16
chris rs ss Drives: black 2ss/rs Join Date: Aug 2009 Location: va Posts: 120	Actually 4 cats and two sensors. Deleting mufflers will not affect inspections or emmisions in Va. Could only get a ticket for noise. Thats it.

10-08-2009, 01:59 PM	#19
drperry Drives: Chevy Blazer Join Date: Sep 2009 Location: Grande Prairie, AB Posts: 300	Pre-cats and main cats like the S-series vehicles, or 4 full sized cats? If it's like the s-series, then the pre-cats can be removed without any problems... They're only there to warm up the car a little faster for emissions testing.

10-10-2009, 09:19 AM	#27
towmoe Drives: IBM 2010 Camaro Join Date: Dec 2008 Location: OKC Posts: 462	Has anyone done a dyno, before and after a muffler delete? I curious if there are any gains... __________________ 2SS/M6 \| Imperial Blue Metallic \| White Stripes \| Black Int

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