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Old 01-13-2016, 11:04 AM   #1
rvadim76
 
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Question Headers and exhaust question (need expert advice)

Hey Guys,
It's been a while since I bought this car but still I have some pending questions about mods I have.

This one is about exhaust and headers configuration.

First of all I love the sound that I have. It's laud but not awfully laud. Nice idle sound and terrific under mid-high loads!
The exhaust pipes seem to have no muffler and I could not find any indications/marks that help to determine what brand is it.
I have attached a few pics of my exhaust (gonna have some more with better quality) and will be highly appreciated if someone could shed some light on what brand it can be.

Another part is related with the headers and cats, they are very likely stock.
Below I posted some pics, please reconfirm that for me.

Talking about cats - they are the same as shown here: http://www.camaro5.com/forums/showthread.php?t=184443 meaning that it's LS3 cats (btw I have L99 converted to Ls3).

Finally I personally do not think that this is the best configuration ever (i.e. stock headers and cats + high flow exhaust) and apart of sound I probably have no power gain. What do you think?


Thanks for all your help!
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Old 01-13-2016, 11:06 AM   #2
Apex Motorsports
 
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Looks like everything is stock with an exhaust shop muffler delete.
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Old 01-13-2016, 11:10 AM   #3
rvadim76
 
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Quote:
Originally Posted by Apex Motorsports View Post
Looks like everything is stock with an exhaust shop muffler delete.
Thank you very much!
Is there any advantage of deleted mufflers except of sound improvements?
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Old 01-13-2016, 11:54 AM   #4
vroomapunk
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Quote:
Originally Posted by rvadim76 View Post
Thank you very much!
Is there any advantage of deleted mufflers except of sound improvements?
Deleted mufflers come with weight savings as the stock system is very heavy.

No performance gain. Minimal sound improvements on a stock L99 system.


Headers will make it loud, HF cats after the headers will cut down on rasp, and then you will want to keep the center resonator, or add some mufflers after that so it doesnt get obnoxious.
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Old 01-13-2016, 12:09 PM   #5
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Like vroomapunk said, it is just sound and drops some weight. You won't see any additional power out of the exhaust system behind the cats. Swapping the stock manifolds and cats is where all the power is.
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Old 01-13-2016, 01:46 PM   #6
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vroomapunk, Apex Motorsports - THANK YOU ALL for your precious help!
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