Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com
 
BORLA
Go Back   Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com > Engine | Drivetrain | Powertrain Technical Discussions > Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons


Reply
 
Thread Tools
Old 03-07-2013, 08:34 PM   #1
07Tundra
 
Drives: 2014 White ZL1
Join Date: Jun 2012
Location: Blenheim, SC
Posts: 133
Contemplating Headers?

I am thinking about getting a set of Longtube headers. I don't want to mess up my daily driver though. Would I have any reliability issues if I bought a good quality set such as Kooks? If you have headers, do you ever regret getting them? Will they drastically reduce my mpg? Not a huge issue, but I like getting 22ish. Anything 20 or better will still be fine. Opinions welcome!

Oh yeah... Really good chance I am getting a tune headers or not. Need to wake up that L99!
07Tundra is offline   Reply With Quote
Old 03-07-2013, 08:48 PM   #2
Mchlgrrsn
Stroked and blown
 
Mchlgrrsn's Avatar
 
Drives: 2010 LS3 2SS
Join Date: Dec 2012
Location: Bridgewater, NJ
Posts: 1,458
MPG ??? really ??? you have an 8 cylinder muscle car that you want to make faster. Put the headers on and enjoy. You should add a CAI while your at it. Air in air out and good tune is always a good move. Not a shot in hell you will regret it.
__________________
LME 416 LS3 shortblock/Callies Compstar 4340 4"crank/Callies 6.125 H beams rods/Wiesco 4.07 forged pistons/Cam Motion custom LS1/LME ported heads /maggie TVS2300/I West 8rib 10%OD /3.2 pulley/OD cog drive/JRE tensioner/ID850 /ADM dual fuel/Kooks LT 1 7/8/magna flow2.5 /cat delete/Roto Fab CAI /MGW short throw /SPEC super twin clutch/G Force built trans,carbon syncro rear shaft upgrade /DSS 9"single CF DS /Strange 3.70/31 spline trutrac/MT DR's/earls oil cooler /tuned KHC
Mchlgrrsn is offline   Reply With Quote
Old 03-07-2013, 09:00 PM   #3
Apex Motorsports
 
Apex Motorsports's Avatar
 
Drives: 2000 Camaro SS
Join Date: Feb 2010
Location: Louisville, Ky.
Posts: 25,211
Quote:
Originally Posted by 07Tundra View Post
I am thinking about getting a set of Longtube headers. I don't want to mess up my daily driver though. Would I have any reliability issues if I bought a good quality set such as Kooks? If you have headers, do you ever regret getting them? Will they drastically reduce my mpg? Not a huge issue, but I like getting 22ish. Anything 20 or better will still be fine. Opinions welcome!

Oh yeah... Really good chance I am getting a tune headers or not. Need to wake up that L99!
With a quality set of headers and a good tune you will not have any driveability or reliability issues. Any change in fuel economy will be due to you putting your foot deeper in the throttle so you can enjoy the improved sound and power.
Apex Motorsports is offline   Reply With Quote
Old 03-07-2013, 09:05 PM   #4
07Tundra
 
Drives: 2014 White ZL1
Join Date: Jun 2012
Location: Blenheim, SC
Posts: 133
Quote:
Originally Posted by Mchlgrrsn View Post
MPG ??? really ??? you have an 8 cylinder muscle car that you want to make faster. Put the headers on and enjoy. You should add a CAI while your at it. Air in air out and good tune is always a good move. Not a shot in hell you will regret it.
I should have stated that I already have a CAI intake that I love. I have also deleted my mufflers. May have to put a good cat back system on there if I decide on headers. I don't know if the radio will get quite loud enough! would still like to be able to talk to my wife....Some! Would i have good enough gains just adding the LT's with the stock cats and the resonator? Or would spending all that money on headers be useless without hi-flow cats?
07Tundra is offline   Reply With Quote
Old 03-07-2013, 09:09 PM   #5
Apex Motorsports
 
Apex Motorsports's Avatar
 
Drives: 2000 Camaro SS
Join Date: Feb 2010
Location: Louisville, Ky.
Posts: 25,211
Quote:
Originally Posted by 07Tundra View Post
I should have stated that I already have a CAI intake that I love. I have also deleted my mufflers. May have to put a good cat back system on there if I decide on headers. I don't know if the radio will get quite loud enough! would still like to be able to talk to my wife....Some! Would i have good enough gains just adding the LT's with the stock cats and the resonator? Or would spending all that money on headers be useless without hi-flow cats?
You can not use your stock cats with long tube headers. You have to either go with high flow cats or a cat delete. For the application you are describing I would not suggest cat deletes.
Apex Motorsports is offline   Reply With Quote
Old 03-07-2013, 09:16 PM   #6
Mchlgrrsn
Stroked and blown
 
Mchlgrrsn's Avatar
 
Drives: 2010 LS3 2SS
Join Date: Dec 2012
Location: Bridgewater, NJ
Posts: 1,458
Quote:
Originally Posted by 07Tundra View Post
I should have stated that I already have a CAI intake that I love. I have also deleted my mufflers. May have to put a good cat back system on there if I decide on headers. I don't know if the radio will get quite loud enough! would still like to be able to talk to my wife....Some! Would i have good enough gains just adding the LT's with the stock cats and the resonator? Or would spending all that money on headers be useless without hi-flow cats?

Yes you will need high flow cats. Not really an option
__________________
LME 416 LS3 shortblock/Callies Compstar 4340 4"crank/Callies 6.125 H beams rods/Wiesco 4.07 forged pistons/Cam Motion custom LS1/LME ported heads /maggie TVS2300/I West 8rib 10%OD /3.2 pulley/OD cog drive/JRE tensioner/ID850 /ADM dual fuel/Kooks LT 1 7/8/magna flow2.5 /cat delete/Roto Fab CAI /MGW short throw /SPEC super twin clutch/G Force built trans,carbon syncro rear shaft upgrade /DSS 9"single CF DS /Strange 3.70/31 spline trutrac/MT DR's/earls oil cooler /tuned KHC
Mchlgrrsn is offline   Reply With Quote
Old 03-07-2013, 09:19 PM   #7
07Tundra
 
Drives: 2014 White ZL1
Join Date: Jun 2012
Location: Blenheim, SC
Posts: 133
Quote:
Originally Posted by Apex Chase View Post
You can not use your stock cats with long tube headers. You have to either go with high flow cats or a cat delete. For the application you are describing I would not suggest cat deletes.
Cat delete would work, but I would have to buy a catback exhaust right? Or would that still be too freakin loud? Would it hurt the reliability/longevity of my engine to run without cats? I used to have a LS1 Trans Am that would rumble my old girlfriends house! They could feel it when i pulled up! It was a beast. I want good clean sound with out breaking a bunch of noise ordinances! I am a huge fan of Flowmaster. I love their rumble so much every V8 I have every own had one. Best buds with the muffler shop guy helped. Held off for a while on my Tundra, but it now has a super 44 on it!
07Tundra is offline   Reply With Quote
Old 03-07-2013, 09:20 PM   #8
07Tundra
 
Drives: 2014 White ZL1
Join Date: Jun 2012
Location: Blenheim, SC
Posts: 133
Quote:
Originally Posted by Mchlgrrsn View Post
Yes you will need high flow cats. Not really an option
What brand/combo do you suggest? 1 7/8 right?
07Tundra is offline   Reply With Quote
Old 03-07-2013, 09:31 PM   #9
Apex Motorsports
 
Apex Motorsports's Avatar
 
Drives: 2000 Camaro SS
Join Date: Feb 2010
Location: Louisville, Ky.
Posts: 25,211
Quote:
Originally Posted by 07Tundra View Post
Cat delete would work, but I would have to buy a catback exhaust right? Or would that still be too freakin loud? Would it hurt the reliability/longevity of my engine to run without cats? I used to have a LS1 Trans Am that would rumble my old girlfriends house! They could feel it when i pulled up! It was a beast. I want good clean sound with out breaking a bunch of noise ordinances! I am a huge fan of Flowmaster. I love their rumble so much every V8 I have every own had one. Best buds with the muffler shop guy helped. Held off for a while on my Tundra, but it now has a super 44 on it!
Whether you go with high flow cats of cat deletes has no bearing on what you mount behind it. Neither with require you to go with an aftermarket cat back. You just have to make sure you are buying a set of headers that utilizes the factory connection points (sometime called a "short system", not the same thing as short tube headers). Without cats it will be louder and you will get the rotten egg smell. Wives tend to not like that.
Apex Motorsports is offline   Reply With Quote
Old 03-07-2013, 09:33 PM   #10
Nightmare2012
come find out;)
 
Drives: stockish 2012 camaro ss
Join Date: Oct 2012
Location: speed county
Posts: 2,167
Put mufflers on and high flow cats or else you wont b avle to talk
Nightmare2012 is offline   Reply With Quote
Old 03-07-2013, 09:43 PM   #11
Mchlgrrsn
Stroked and blown
 
Mchlgrrsn's Avatar
 
Drives: 2010 LS3 2SS
Join Date: Dec 2012
Location: Bridgewater, NJ
Posts: 1,458
You mentioned you didn't want it too loud. Kooks sells a complete exhaust system. You should get something with mufflers. I like kooks very much. As far as size goes, I like 3 inch inlet to a 2.5 outlet no cats and 2.5 the rest of the way out.
__________________
LME 416 LS3 shortblock/Callies Compstar 4340 4"crank/Callies 6.125 H beams rods/Wiesco 4.07 forged pistons/Cam Motion custom LS1/LME ported heads /maggie TVS2300/I West 8rib 10%OD /3.2 pulley/OD cog drive/JRE tensioner/ID850 /ADM dual fuel/Kooks LT 1 7/8/magna flow2.5 /cat delete/Roto Fab CAI /MGW short throw /SPEC super twin clutch/G Force built trans,carbon syncro rear shaft upgrade /DSS 9"single CF DS /Strange 3.70/31 spline trutrac/MT DR's/earls oil cooler /tuned KHC
Mchlgrrsn is offline   Reply With Quote
Old 03-07-2013, 09:50 PM   #12
Bo White


 
Bo White's Avatar
 
Drives: 2010 Summit White 1SS
Join Date: Feb 2012
Location: Vance Alabama
Posts: 5,044
Ive got 1 3/4 JBA LTs on mine, get 22+ on the interstate and gained over 30rwhp. Drive it everyday.
__________________
Retired wannabe
Bo White is offline   Reply With Quote
Old 03-07-2013, 09:59 PM   #13
litle88
V8 Lounge member #2
 
litle88's Avatar
 
Drives: 2001 Ws6
Join Date: Sep 2009
Location: Burbank,IL
Posts: 6,337
Quote:
Originally Posted by Mchlgrrsn View Post
MPG ??? really ??? you have an 8 cylinder muscle car that you want to make faster. Put the headers on and enjoy. You should add a CAI while your at it. Air in air out and good tune is always a good move. Not a shot in hell you will regret it.
I like this guy!!!! You sound like my twin around here!

OP go with a 1 7/8's header I have the kooks on both my cars and since its your DD get them coated. I got mine thru Maryland speed they are sponsors here and have free shipping. Cats are pointless to me really but up to you. But pleeeease don't come here worried about MPG's or Warrantys because those are for Honduh's, Camrys and Subaloosers! Got on the mod train and get it started for the spring!!!
__________________
2001 ws6, 40k miles, Ls3 416 stroker, short block built by PER the rest by me. LPE Ls3 heads milled to 12-1 comp, FAST 102, NW 102, kooks 2", dual DMH cutouts, Magnaflow C/B, BTR cam + springs. Full UMI suspension.
litle88 is offline   Reply With Quote
Old 03-07-2013, 10:06 PM   #14
Juiced1

 
Juiced1's Avatar
 
Drives: 2012 2SS CAMARO 45th
Join Date: Apr 2011
Location: IL
Posts: 15,575
Quote:
Originally Posted by 07Tundra View Post
I am thinking about getting a set of Longtube headers. I don't want to mess up my daily driver though. Would I have any reliability issues if I bought a good quality set such as Kooks? If you have headers, do you ever regret getting them? Will they drastically reduce my mpg? Not a huge issue, but I like getting 22ish. Anything 20 or better will still be fine. Opinions welcome!

Oh yeah... Really good chance I am getting a tune headers or not. Need to wake up that L99!

Adding headers will lower your mpg for sure especially if you don't get a proper tune. If you have already done a muffler delete and you don't want to wake the neighbors you'll need a catback. If you plan on having your wife in the car you might want a milder catback system to go with a set of long tubes.
__________________

Get more Power for your Dollar at Juiced Motorsports. We carry all the hottest brands such as CAI, Roto-Fab, Kooks, ARH, SW, Borla, SLP, Solo, Whipple, Procharger, Magnacharger and much more! PM us or call us at 224-400-5793 for your Camaro5 discount today!

Juiced1 is offline   Reply With Quote
 
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 03:52 AM.


Powered by vBulletin® Version 3.8.9 Beta 4
Copyright ©2000 - 2016, vBulletin Solutions, Inc.