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  #1  
Old 07-01-2007, 10:25 PM
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who makes the best set of headers for 99-04 gt?
 
  #3  
Old 07-02-2007, 03:31 AM
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SLP Ceramic coated LT's. There are many opinions out there on what the best ones are. This is my opinion. USE THE SEARCH. As stated earlier, go for the long tube headers. Otherwise don't bother. Harder to install but a much better power increase.
 
  #4  
Old 07-02-2007, 07:24 AM
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any of them are good there is no one good header,cai, etc.. people just have favs. Me im cheap and i like macs cause there cheaper then the rest and fit ok and work with autos and manual cars.
 
  #5  
Old 07-02-2007, 08:17 AM
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Originally Posted by zigzagg321
BBK ceramic. Long Tubes or don't bother.
BBk's are far from being the best my friend...
 
  #6  
Old 07-02-2007, 08:22 AM
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OK, general consensus is Long tube headers. I have to agree, everything I've read on the 99-04 GTs say the headers are one of the last bolt-ons you should do, since shorty headers offer almost no improvement and the stocks flow relatively well. More a necessity or FI applications, they certainly never hurt. After that, brand is more a preference than anything. If your cheap, you can go to summit for some flowtechs, but if you want that name brand that everyone respects, my preference would be SLP.
 
  #7  
Old 07-02-2007, 10:38 AM
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longtubes no matter what. i chose slp, top quality, but top price
 
  #9  
Old 07-02-2007, 11:35 AM
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Originally Posted by zigzagg321
ok so that's why MODULAR POWERHOUSE uses them and only them for the 99-04 GT's. Tim himself told me personally that they are the best fitting for 99-04's. He should know, being the owner of one of the best Mustang performance shops in existence.
They maybe the best fitting, but do not produce the most power. They are good for the price. The best would have to be Kook's, but they cost like $850. My rating for the top four would be: Kook's, SLP's, BBK's, Mac's.
 
  #10  
Old 07-02-2007, 11:42 AM
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Originally Posted by dookie2365
longtubes no matter what. i chose slp, top quality, but top price
but its well worth it
 
  #12  
Old 07-02-2007, 12:04 PM
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you belive a bit to much into what a shop is selling, there ok headers right there with MAC as they both have the same design.
 
  #14  
Old 07-02-2007, 12:10 PM
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Originally Posted by zigzagg321
ok so that's why MODULAR POWERHOUSE uses them and only them for the 99-04 GT's. Tim himself told me personally that they are the best fitting for 99-04's. He should know, being the owner of one of the best Mustang performance shops in existence.
Lmao...if he told you the mac cai is the best out there you'd believe too wouldn't you...for the record..

Hookers>BBk's...
 
  #16  
Old 07-02-2007, 12:53 PM
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I got Hookers and they fit like a glove. The rear two primary tubes are kind of close to the steering shaft but they clear it. My only issue w/ them is the 2 piece design of the driver header and the slip fit collector since they aren't good w/ being leak proof. Powerwise though, I went from getting 19-20 mpg to getting nothing less than 21 driving around town and as far as highway, driving from exit 15-23 and back on the NY Thruway I went from 24 mpg to a solid 26-27 mpg so even w/ a stock engine, there is power and even torque to be made.
 
  #18  
Old 07-02-2007, 12:56 PM
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Originally Posted by zigzagg321
actually no I wouldn't...but thanks for being the rude one as usual.

I've heard horror stories about fitment issues with the Hookers... but are you using them?
Rude.me?...you're one to talk zigzag....
 
  #20  
Old 07-03-2007, 06:50 AM
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yeah so about the headers i should buy thanks for everything
 
  #21  
Old 07-04-2007, 02:25 PM
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Zigzagg, they made the car barely louder since the x-pipe quiet things down a bit. However, running them w/o cats does make a difference in loudness and it sounds mean, especially at idle. I just wish I had an H-pipe instead.
 
  #22  
Old 07-05-2007, 02:02 PM
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if price isnt an issue go with slp...what kind of exhaust do you have???
 
  #23  
Old 07-10-2007, 05:29 PM
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bbk's are a good name out there. so are slp longtubes. i am putting on a pair of bbk shorties this week along with a slp mid pipe. does anybody know if i will need to adjust my fuel preasure as well?
 
  #24  
Old 07-11-2007, 05:32 PM
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Originally Posted by jonthacher
bbk's are a good name out there. so are slp longtubes. i am putting on a pair of bbk shorties this week along with a slp mid pipe. does anybody know if i will need to adjust my fuel preasure as well?
nope you dont need to, a dyno tune would get the most out of them.
 
  #25  
Old 07-15-2007, 08:24 AM
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BBK long tube or your waisting your money.....dyno proven results
 
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