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post #1 of 16 (permalink) Old 12-31-2012, 02:15 PM Thread Starter
 
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05 gto headers

Hello everyone i am new here so sorry if i dnt know much. Anyways my question is i have a 2005 gto (stock) and was wondering if i wanted to get aftermarket headers what would be the way to go n what size. I see websites say 3" pipes n 1 3/4 idk wat tjat means lol i get the 3" though. Also is there a specific mesurement i should look for to fit the block or any aftermarket will fit made for that car. With that said would i need new cats simce it will be aftermarket headers or can.i use stock. And last but not least is H pipe better or X pipe. My friend sqid to get single chambers but idk wat he means by that. Can anyone help plz. Thank you n hope everyone has a happy new year
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post #2 of 16 (permalink) Old 12-31-2012, 07:34 PM
 
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Originally Posted by edd916_gtoLS2 View Post
Hello everyone i am new here so sorry if i dnt know much. Anyways my question is i have a 2005 gto (stock) and was wondering if i wanted to get aftermarket headers what would be the way to go n what size. I see websites say 3" pipes n 1 3/4 idk wat tjat means lol i get the 3" though. Also is there a specific mesurement i should look for to fit the block or any aftermarket will fit made for that car. With that said would i need new cats simce it will be aftermarket headers or can.i use stock. And last but not least is H pipe better or X pipe. My friend sqid to get single chambers but idk wat he means by that. Can anyone help plz. Thank you n hope everyone has a happy new year
You can get shorty headers but they are a waste of time. Take a look at Kooks and ARH. Both will offer cats and two sizes of pipes. Depending on if your changing heads and adding a forced induction of some type use the 1 7/8. otherwise the 1 3/4 will work just fine.

http://www.kookscustomheaders.com/ca...&sname=General Motors&sid=51&pname=GTO (LS1/LS2)&pnid=60
04-06 Pontiac GTO

As far as H or X it depends on the sound you want. Do a search on you tube and you can hear them .
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post #3 of 16 (permalink) Old 12-31-2012, 09:40 PM
 
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Your buddy is probably talking about mufflers with the single chamber thing. That depends on your taste but single chambers are way too loud for a street car IMO. As stated above long tube headers are worth more, shorties are OK but don't really do much. 1-3/4" primaries are good for most cars unless you plan to add a 'charger later on. Kooks and American Racing Headers are two very good headers but pricey. I have Pacesetters and they are nice and carry a much lower price tag, but they are regular mild steel instead of stainless. I have coated versions and they fit well and are holding up very nicely, but I don't DD my car.

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post #4 of 16 (permalink) Old 01-01-2013, 12:38 PM Thread Starter
 
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Well thanks that helpped out alot. is there a way i can add more upgrades that arent to pricey for now or will it all be pricey since they dnt make gtos no more.
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post #5 of 16 (permalink) Old 01-01-2013, 02:05 PM
 
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I'll echo what B-ville said. 1-3/4" primaries are plenty for stock to mid power level & displacement cars. Any good set of heades should have a 3" collector. Good headers that won't corrode are pricey but well worth it IMO and the base for every mod that comes after it. Buy used for a bargain. Having an LS2 you could find a shop that knows how to port your intake manifold to free up some extra ponies. Also you can get a good OTRCAI. That's about all without going into the motor.

Don't forget, anything worth doing is also going to require being retuned.

2004 GTO M6 Torrid Red
Ai ported 243s-ported Fast 90-FTI Tigershark cam-Kooks headers & cats ???hp/???tq
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post #6 of 16 (permalink) Old 01-02-2013, 10:37 PM Thread Starter
 
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Thank you everyone now time to look for some headers n save up n then have my baby walling down the streets to break everyones necks
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post #7 of 16 (permalink) Old 01-03-2013, 07:12 AM
 
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The search at the top of the screen is your best friend. You can look almost anything up from shorties vs. long tubes to x-pipe vs. h-pipe ect.
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post #8 of 16 (permalink) Old 01-07-2013, 07:11 PM
 
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Long tubes are the way to go if you can afford it, and the install since there's a lot more work compared to the shorties. Good luck whichever route you take.
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post #9 of 16 (permalink) Old 01-09-2013, 12:00 AM
 
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Good advise has already been given above... next up, pricing

Headers : MarylandSpeed.com- Your First Stop on the Way to Performance!

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post #10 of 16 (permalink) Old 01-17-2013, 11:11 PM Thread Starter
 
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Quick question how do you make new forums i forgot how. And also i might as well ask here. Idk if you guys have had trouble with your gto but my engine light came on a couple hours ago and i scaned it and it told me kwp2000 and iso9141 idk what that means but ive been searching and i thnk the 2000 is the software but i have no clue what the other one it. Also it said erro link so im assuming i didnt get a code but everything runs fine. But my xpipe is blown n i have one pipe conected n another one just broke of so im wondering if that could be a problem. Do any of you guys get hat code please help thanks
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