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Old Feb 12, 2007 | 11:45 PM
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Default Question about headers..

Okay, so I think I'm gonna bite the bullet and finish out the exhaust on my Formula, this thing needs some mods finally. I think I've settled on Kooks as my choice for headers... I like the way they tuck up under, seems like a decent setup.

So.. I'm thinking of going with the street headers and their catted y-pipe... I'm gonna be moving back in towards Seattle before too long..

So there's 1-3/8" and there's 1-7/8"... same price. There's also 1-3/4" x 1-7/8" for $120 more. Not real sure which is the best choice... any thoughts there?

Also... do stainless need to be coated, or no?
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Old Feb 12, 2007 | 11:58 PM
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The 1 3/4 would be fine unless your going to run a big cam and play in the upper rpm range then the stepped to 1 7/8 would be a good choice, which is what I am doing.
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Old Feb 13, 2007 | 12:01 AM
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Originally Posted by 99blancoSS
The 1 3/4 would be fine unless your going to run a big cam and play in the upper rpm range then the stepped to 1 7/8 would be a good choice, which is what I am doing.
I don't plan on doing much more to the car performance wise beyond a LS6 intake.. and a decent cam.. After that I'm going to go purely for appearance. I just wanna do enough to get it into the low 12's. I'm gonna have to start thinking about a 12-bolt after that point.
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Old Feb 13, 2007 | 12:12 AM
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1 3/4's should be plenty then that's all the QTP's on mine are that bill bought.
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Old Feb 13, 2007 | 12:48 AM
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1 3/4's will be great. They dont need to be coated but I think you still benefit from having them coated not real sure about it. I was thinking of going the coated route as well.
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Old Feb 13, 2007 | 07:30 AM
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coated stainless? theres no need for coating stainless.
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Old Feb 13, 2007 | 07:55 AM
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Originally Posted by Rokko
coated stainless? theres no need for coating stainless.

HEAT. even with stainless they will still produce alot of heat. But if you are going to get a set of headers why not look into a set of edelbrock victors half the price even with coating them, and the performance is great they are a 1 3/4 to 1 7/8 steped and come with a high velocity merge collector which would help with low end tourqe. I just don't see spending the money on a set of stainless steal headers but thats just me.

Don;t get me wrong kooks are nice but the also carry a hefty price tag. with the money you save on the headers you could do a nice cam.

By the way these headers tuck up real nice, trust me. Just another idea for you.
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Old Feb 13, 2007 | 08:08 AM
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Ahh, heat. Very good point. How many of the coatings out there are NW weather proof? The armour coat on my pacesetters is already rusting and it's only been 4 months since the install.

Now granted, Zeke's Formy will probably never see the rain or DD duty.

How does the edelbrock coating hold up to the NW weather?
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Old Feb 13, 2007 | 08:16 AM
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Originally Posted by Rokko
Ahh, heat. Very good point. How many of the coatings out there are NW weather proof? The armour coat on my pacesetters is already rusting and it's only been 4 months since the install.

Now granted, Zeke's Formy will probably never see the rain or DD duty.

How does the edelbrock coating hold up to the NW weather?

dont' know I never had them coated just high temp black paint, but then again remeber i was not so much into the bling factor. the jet hot on my old qtp's help up great execept where they scraped the ground.
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Old Feb 13, 2007 | 09:09 AM
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The Edelbrocks come with a nice coating, I think the way Zeke drives his cars they will have no problem holding up. I've had Kooks and Edelbrocks and the Edels are are excellent buy. But they will not tuck up as well as the Kooks especially with a catted Ypipe. My vert had them with BMR springs and custom magnoflow cats ypipe and it hung down a bit NOTHING like the QTP y pipe I have on the SS though....

The kooks do tuck up nice but usually bang the floorboard on acceleration. I would highly recommend doing poly motor mounts as well if you install Kooks.

If the car is not lowered more than an inch I would go with 1 3/4 Kooks, use the ORP and have the magnaflow bullet cats installed on it. If the car is stock hieght or an inch lower you can't go wrong with the edelbrock setup even with the cats I had 650 into the whole setup. VERY nice quality on both sets you can't go wrong on either.

One that I'm looking into a bit is that American Racing setup the vette guys really like them...
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Old Feb 13, 2007 | 09:45 AM
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are you talking about the victor race headers or the shorties? i had the victor race ones and the coating was an option. just remember the bigger you go on the primaries the less tourqe you will make but you will make more horsepower up top.
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Old Feb 13, 2007 | 09:51 AM
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Victor Race headers, I don't consider shorties an option Yes you can get them in black but the "hi-tech" coating isn't that much more $$ and holds up quite well
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Old Feb 13, 2007 | 12:03 PM
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I had the QTP's (same exact design as the the Kooks) and they weren't coated. Had em up here close to 18 months with no issues like rust or the like & I drove my pos in the rain, snow, etc. The only "trouble" I noticed was my clutch getting soft at the track due to the heat from the headers......but with that blue fluid or wrapping or re-routing the clutch lines, that problem is easily solved.

1 3/4 is more then enough unless you are planning on stroking the motor or ading a monster cam or getting truly radical.......I am sure there are better or at least equally as good headers out there, but if I was buying again, I would buy QTP or Kooks without a second thought!
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Old Feb 13, 2007 | 12:12 PM
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I honestly dont see Evil going with anything but stainless steel. More money but they will never have an issue with appearance or rust or coating. Thats why I'm not sure about coating the SS. How does it hold up? Does it just peel like the other stuff eventually all does? Has anyone ever had an coated non stainless header stay as nice as stainless for as long? Not being crass with anyone.
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Old Feb 13, 2007 | 09:14 PM
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This is why I chose Kooks.


I don't have a lot of ground clearance, my car sits reaaaaaallll looooooow... so I need something that gives me the maximum clearance, and a good clean fit... and I really can't picture them fitting much better than that picture. I've been doing searches on the board about headers for weeks, and they seem to be one of the more popular choices out there, everyone says the install is real simple, and seem to be pretty well made.

My Formula will have more ground clearance with LT's and being dropped 2" than my Trans Am has at stock height with a SLP Loudmouth.

I'd actually thought about doing Pacesetters for a while, but decided to bite the bullet and go stainless for appearance reasons.

So 1-3/4 seems to be the choice... and I'd assume I'd go with the "race" version if I want to do the EGR/AIR delete in the process... correct?
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Old Feb 13, 2007 | 09:39 PM
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Well the best fitting headers with the best ground clearance are Stainless Works. They have a 2.5 inch y pipe that tucks up better as well. You wont go wrong with Kooks though.
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Old Feb 13, 2007 | 10:06 PM
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Originally Posted by DrEvyl
So 1-3/4 seems to be the choice... and I'd assume I'd go with the "race" version if I want to do the EGR/AIR delete in the process... correct?
Correct. The race version (same as I had) have no adapters for AIR or EGR and clean up the engine bay nicely......granted mine didn't have EGR from the factory, but the AIR removal was a nice touch and gives a bit more room for "working"
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Old Feb 13, 2007 | 10:21 PM
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Originally Posted by Rottluver
Correct. The race version (same as I had) have no adapters for AIR or EGR and clean up the engine bay nicely......granted mine didn't have EGR from the factory, but the AIR removal was a nice touch and gives a bit more room for "working"
I just want my engine bay to look a little less "stock", and make room for some bling.
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Old Feb 14, 2007 | 01:43 AM
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cool,

I went with the 1-7/8 because I've got the cam and nitrous,
from what I understand, I'm right on the edge of wether or not I will gain anything from the 1-7/8"

for the GTO at least,
they say above 550hp you should go with the 1-7/8
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Old Feb 14, 2007 | 10:23 AM
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I'll probably never see 550 hp out of the car, so no sense in going that far. I kinda like not really having to mess with the car, and just being able to enjoy it and drive it around like I would any other car. I never wanna get to the point where I can't just hop in it and go cruising, and don't want to have to trailer it around.
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