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Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons Bolt-Ons | Intakes | Exhaust

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Old 10-08-2010, 05:22 AM   #1
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Another Muffler Delete Question

I went to have it done yesterday (L99), the guy told me it might throw a code due to the reduced backpressure. Has anyone gotten a "Check Engine" light from a muffler delete?

And my powertrain warranty should remain in effect, right?

Thanks,
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Old 10-08-2010, 05:32 AM   #2
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Not that I'm aware of. The stock mufflers have such low back pressure already, IMO, the muffler delete does nothing but affect the sound. I have had the muffler delete for almost one year without any problems.
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Old 10-08-2010, 05:49 AM   #3
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no code or nothing from me

just the loss of mpg from reving it all the time
and winding it out to high rpms to hear the awsomeness
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Old 10-08-2010, 06:20 AM   #4
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No problems I am putting on headers today with cats and xpipe I am hoping it is not to crazy
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Old 10-08-2010, 07:47 AM   #5
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Quote:
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I went to have it done yesterday (L99), the guy told me it might throw a code due to the reduced backpressure.
Sorry, but I've got to raise the flag...
That statement is so totally false.
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Old 10-08-2010, 07:48 AM   #6
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No codes. Get a new shop...
With headers, HF cats and muffler delete, it will be loud, very loud. Be prepared!
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Old 10-08-2010, 08:16 AM   #7
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I have the resonators on and have no drone at all and think it sounds great. Do you think it will sound bad?
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Old 10-08-2010, 08:59 AM   #8
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I have the resonators on and have no drone at all and think it sounds great. Do you think it will sound bad?
It's going to be loud!

It's all in someone's preference though. There are a few around here that love the muffler delete with headers. WAY to loud for me but might be ok for you.

Just be prepared to make some kind of change if you have to. Maybe you'll get lucky and can handle the increased sound.
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Old 10-08-2010, 09:43 AM   #9
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thanks
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Old 10-08-2010, 10:20 AM   #10
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So what is the muffler delete? Are you just removing the mufflers and installing a straight pipe?

Bill
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Old 10-08-2010, 10:58 AM   #11
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I had the mufflers removed and installed larger tips to straight pipes from the resonators. The sound is really good but I am worrying that after the LT headers and X pipe are put in it maybe to loud.
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Old 10-08-2010, 02:29 PM   #12
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Quote:
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So what is the muffler delete? Are you just removing the mufflers and installing a straight pipe?

Bill

YES! And it sounds FRIKIN AWESOME! Sorry, i get a little excited thinking about it. It's cheap also, mine cost $100.59. Just the other day I was in an empty pole barn... HOLY CRAP did that sound BA.
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Old 10-08-2010, 02:33 PM   #13
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I have an LS3 with Muffler delete and a Volant CAI. The sound it great with no drone. I've never had a problem or thrown any codes from either. The stock setup was just too quiet!
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Old 10-08-2010, 02:54 PM   #14
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Quote:
Originally Posted by ITGuy11 View Post
No codes. Get a new shop...
With headers, HF cats and muffler delete, it will be loud, very loud. Be prepared!
why would he go to a new shop? the guy was just saying what he thought... i mean it makes sense why somebody would think that ...
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Old 10-09-2010, 07:22 AM   #15
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Muffler delete with headers = Loud

I have the muffler delete and LT's without cats and let me tell you it is loud....I love it but it is not for everyone......



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Old 10-09-2010, 08:29 AM   #16
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Quote:
Originally Posted by CamaroCowboy View Post
Muffler delete with headers = Loud

I have the muffler delete and LT's without cats and let me tell you it is loud....I love it but it is not for everyone......




I think thats just excellent. But I would get some highflow cats though, you know, for the environment.
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Old 10-09-2010, 11:21 AM   #17
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Quote:
Originally Posted by destroyerofu2 View Post
no code or nothing from me

just the loss of mpg from reving it all the time
and winding it out to high rpms to hear the awsomeness
Exactly!!!
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Old 10-09-2010, 03:22 PM   #18
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Just did it. Best $190 I ever spent.


Now pondering a set of StainlessWorks longtube's and highflow cats. And a tune. And suspension enhancements. And a Z28.

Oh and BTW, they were full of water.

Last edited by MG; 10-09-2010 at 03:47 PM.
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