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

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Old 10-03-2009, 12:38 PM   #1
Kscott46
 
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Newbie needs help! exhaust question..

First and foremost I gotta say this site is AWESOME, this is my first post so take it easy on me guys. I finally bought my dream car, which is 2010 SS 2, RS, with a MT. I'm looking to do some easy bolt on performances. After looking and listening to all the you tube videos I have narrowed it down. I'm thinking of getting SLP Loudmouth II Axle back exhaust. It mentions something about an adapter for the stock exhaust? Question is, what are the gains? Is it worth it? If not I'm thinking of Borla full cat system S type.. Any opinions? I'm also thinking of a Roto-Fab intake.. Thanks again guys any opinions will help!
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Old 10-03-2009, 01:17 PM   #2
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Hi and welcome.

You will see only modest gains with an axle back or catback on an LS3.
if you had an L99 Automatic you would most likely see some gains from just a catback because it comes with two extra resonators and different (more restrictive) mufflers.

Your decision on which axle back or catback to get should be based on sound. How aggressive or tame do you want your exhaust?

Intakes are making around 10 - 15 rwhp or so. You could possibly see 20rwhp with a full catback exhaust and intake, but I wouldn't expect any more than that.

The real HP is found with long tube headers. Most guys are seeing
20-30 rwhp from long tube headers and high flow cats. ARH and Kooks are very popular long tube headers.

A combination of long tube headers, high flow cats, and intake can give you around 40 rwhp (that's really you best combination for making HP).
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Old 10-03-2009, 01:38 PM   #3
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Thanks SGO, you answered all my questions, Im not looking to drag race make a monster out of my camaro. I just want it to sound like a SS 6.2 should! I'm gonna go ahead and go with SLP Loudmouth II, Any opinions on Roto-Fab intake? I know there is only a small amount of performance accessories out for the camaro, should I wait on the intake? Or do you suggest something else?
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Old 10-03-2009, 02:03 PM   #4
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Quote:
Originally Posted by Kscott46 View Post
Thanks SGO, you answered all my questions, Im not looking to drag race make a monster out of my camaro. I just want it to sound like a SS 6.2 should! I'm gonna go ahead and go with SLP Loudmouth II, Any opinions on Roto-Fab intake? I know there is only a small amount of performance accessories out for the camaro, should I wait on the intake? Or do you suggest something else?

A lot of guys are waiting on the intake dyno test results. Most of the intakes available are going to be tested. My guess is that most of them will make pretty similar HP.
We're waiting on the OTR intake (over the radiator style intakes) to get in on the test. They claim to make the most HP, but the key word is "claim." Hopefully they will get in on the testing.
Here's the thread I'm talking about.

http://www.camaro5.com/forums/showthread.php?t=43722

I think you'd be happy with the Roto-Fab intake or any of the other intakes available. They should all make very similar HP numbers (10-15hp) or so.
I also think you'd be happy with the Borla or the SLP Loudmouth 2.
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Old 10-03-2009, 02:18 PM   #5
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Exhaust options

Quote:
Originally Posted by Kscott46 View Post
First and foremost I gotta say this site is AWESOME, this is my first post so take it easy on me guys. I finally bought my dream car, which is 2010 SS 2, RS, with a MT. I'm looking to do some easy bolt on performances. After looking and listening to all the you tube videos I have narrowed it down. I'm thinking of getting SLP Loudmouth II Axle back exhaust. It mentions something about an adapter for the stock exhaust? Question is, what are the gains? Is it worth it? If not I'm thinking of Borla full cat system S type.. Any opinions? I'm also thinking of a Roto-Fab intake.. Thanks again guys any opinions will help!
The exhaust note is really about what sounds good to you. If you let the "numbers" sway your choice you may end up with a sound you're not looking for. There will always be someone faster, go with what sounds good to you if you don't plan on being king of the strip. If that extra once of power floats your boat then pay attention to those dyno charts. I think that for the majority of us, personalizing our rides to our tastes is what it's all about.

As far as the Roto-Fab goes, I haven't heard a negitive word from anyone. I will be getting one myself, but then again I'm getting the Vararam too. After all this is MY toy so I get to play with it as I please. Does that help any?
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Old 10-03-2009, 02:23 PM   #6
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Roto-Fab makes a great intake for the Camaro. It performs well and looks great.

www.ZZmotorsports.com carries Borla, SLP and Roto-fab.
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Old 10-03-2009, 02:41 PM   #7
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Thanks guys for the help and opinions. Your absolutely right this is MY TOY and I should make it sound the way I want, Ive seen the Varam intake and it does look awesome, the Hall tech looks great but way too expensive. I might wait. So SLP LM II it is, thanks guys!!
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Old 10-03-2009, 02:55 PM   #8
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I think you will love it!

Quote:
Originally Posted by Kscott46 View Post
Thanks guys for the help and opinions. Your absolutely right this is MY TOY and I should make it sound the way I want, Ive seen the Varam intake and it does look awesome, the Hall tech looks great but way too expensive. I might wait. So SLP LM II it is, thanks guys!!
vids please if you do it
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Old 10-03-2009, 03:10 PM   #9
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I was looking at ARH long tube headers. Do those go well with the stock exhaust back or should I get an axle back exhaust? Would those effect the sound too if I kept the rest of the exhaust past the headers stock?
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Old 10-03-2009, 03:13 PM   #10
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Quote:
Originally Posted by Kscott46 View Post
Thanks guys for the help and opinions. Your absolutely right this is MY TOY and I should make it sound the way I want, Ive seen the Varam intake and it does look awesome, the Hall tech looks great but way too expensive. I might wait. So SLP LM II it is, thanks guys!!
SLP LM II will give you the exhaust note you're looking for. This is what the Camaro should sould like! You'll love it!
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Old 10-03-2009, 04:04 PM   #11
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I just installed the Roto-Fab CAI and it's great! I also have the SLP Loudmouth II axle backs and they sound great! Can't go wrong with this combo. A word of caution though regarding longtube headers, be prepared to do a tune because it will cause engine codes to come up due to changing the cats. This then becaomes a warranty issue cause GM can detect tunes done to the ECM even if put back to stock! Hope this helps! Enjoy your new ride and welcome!
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Old 10-03-2009, 04:38 PM   #12
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I have Solo Mach X ordered for my camaro, http://www.camaro5.com/forums/showthread.php?t=42318 check them out I think you might like these better than the LM II's, can't wait to get my car to put these on.
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Old 10-03-2009, 06:36 PM   #13
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Ordering the SLP LM II tonight! As soon as it's on I will be sure to post vids and pics! Is there a site that you guys recommend I order from?
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Old 10-03-2009, 09:20 PM   #14
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We have them on sale, check out our site www.neweraperformanceparts.com
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Old 10-03-2009, 11:50 PM   #15
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I put Borla S Type on and a Roto-Fab CAI. The AR Long Tube headers with high flow cats and X pipe are going on Monday. I get a tune and Dyno done Monday after it's all on. I'll let you know the dyno results of that setup.
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Old 10-04-2009, 12:59 AM   #16
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Sounds like a sick set up Tanner! Let us know, and also curious how it will sound! Did you feel a difference after adding the Roto Fab?
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Old 10-04-2009, 03:10 AM   #17
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ya outta check out the mach x cat back or the axle back solo offers......


before ya jump the gun.,.,


just a thought...
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Old 10-04-2009, 08:46 AM   #18
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you should go with the ADM performance street version cai. since you wont beracing your car.. I just ordered myself a race version kit. All I have heard is great stuff from ADM prducts and great customer service from Andy.
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Old 10-04-2009, 11:27 AM   #19
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Originally Posted by Kscott46 View Post
Sounds like a sick set up Tanner! Let us know, and also curious how it will sound! Did you feel a difference after adding the Roto Fab?
Oh yeah, I felt the difference right away. With the Borla's she sounds great. After the headers and a tune she should sound fantastic. I'm not sure of the HP gains. I'm thinking alittle more than 50. We'll find out on Monday.
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Old 10-04-2009, 12:23 PM   #20
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coronado...You in Bville?
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Old 10-04-2009, 12:29 PM   #21
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You need to take a trip up here to Dallas. Kinneys muffler in Bedford for your exhausts, or go to ADM in Lewisville, and they can set you up with pretty much anything you want. Their CAI is the best in my humble opinion.
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Old 10-04-2009, 12:34 PM   #22
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ADM is awesome no doubt..but 499 for a CAI, thats pricey, for that i would get a Hall Tech...
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Old 10-05-2009, 12:09 PM   #23
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His is worth it. Lets see what the outcome of the CAI contest is going to be!!
I know where I am putting my money.
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