I am looking at Kooks Long Tube Headers. They seem to be good quality. A buddy of mine bought them for his GTO and he loves them.

 

has anything been done to it?

reason I ask is Roush doesnt change out the stock headers on the stage 3's theres enough flow what it still doesnt hinder performance up to there stock 380 tune.

I have known a few ppl that changed out to LT's and no performance gain, but was a PITA to install. On mine I went with a set of JBA shorties and a Hi-Flo HPipe, i had a xpipe on but it was too raspy.

 

I will be getting a BBK CAI and i have replaced the stock mufflers with Dynomax Bullets. I will also be getting a Xcal2 tune. Kooks offers three different sizes of header pipes. The smallest is for stock vehicles, the second is for vehicles mildly built with some bolt-ons, and the third size, the biggest, is for motors making more than 500 HP or something like that. I am thiking the second one for me because of the CAI, tune and exhaust modifications. Mine comes stock with an H pipe.

 

The site I looked at them was marylandspeed.com at 900+ for them I wouldnt.

the product info states "This header is great for a a stock car, or one with mild bolt on's. With a proper tune at a dyno shop these headers are good for 15-30HP depending on the vehicle and year."

a "tune" at a dyno shop will give you that without the headers.

I dont think you need these with the mods you have or even planning I have heard the Bullets on others cars and I think they sound good, if you want to wake then up a little more, get a Hi-Flo H ( 2 Cats ) vs the stock H with (4 cats )

A BBK CAI wont require a tune, this is more of a dressup mod since you will still be using the stock MAF/TB/Plenum so the amount of air going into the engine hasnt changed

A reputable dyno shop will usually sell you the tuner in conjunction with thier tune/service.( approx 500-600.00 ) I wouldn't use any canned tuned


I know your thread was "Best Headers" right now your Best Headers are your stockers.

You can take a Steigemeier Ported Eaton M90 with polished TB/Plenum and 85mm, @8psi of boost on top of the stock 4.6, conservitive tune push 380+ hp out of it and stock headers flow fine.

IMO the best bang for your buck right now would be a set of gears. the stockers are 3:27's. some will say if you have a auto vs stick go with 4:11 or 3:73's , I say split the difference and go with 3:90's ( a very nice gear ) while you wont have any HP gain, it will "feel" like you do , it will be quicker to accellerate, couple this with the Hi-Flo and you will be very pleased plus save alot of green ( which you can use for gas ) as your mileage with the gears will go down slightly.

 

What are you plans for the car? Turbo? Supercharger? We need more information ...

 

Kooks are great headers and are very high quality. I had Stainless Works long tubes on my GTO and loved them as well. I'm not sure about the Mustangs, but the GTO guys were getting about a 30hp increase with a good dyno tune and long tube headers and about 15hp with just a dyno tune.

You'll definitely want a custom dyno tune when adding long tubes, not a plug and play tune. If you're planning on doing any form of forced induction someday I'd definitely recommend long tubes as well.

As mentioned, they are a major PITA to install but sound amazing with a nice exhaust system.

 

Turbos + Long Tubes = Not fitting.

 

u dont need long tubes with a turbo, but kooks are very good

 

Couldn't use them if you wanted to ... There are a select few vehicles that turbos and long tubes will work but that's it. I think I'm going to do a turbo on my car eventually. It'd be cool, I think.

 

go with roush's advice.

I have kooks long tube headers on my lightning, but I'm running a 6# lower and have up to 15 pounds of boost. the stockers are good untill there is a major air flow increase.

for the sound I like Bassanie's.

 

yea I have long tubes running an 8lb lower and see 17psi

 

Long tubes will still make power gains on a N/A motor, even a mildly modified N/A motor. I don't know what the exact gains are for the new edge but on the S197 long tubes are getting about 20 rwhp.

 

I am hoping to start off with headers, CAI, and tune and then build up after college and get underdrive pulleys, gears, and a possible supercharge. Im not sure because i am working toward a motorcycle. I am looking at headers mainly for sound. I will be looking for gears shortly after.