[Patterson98GT]

I had my 98 GT for a couple weeks and realized I have the same problem as most...the stock plastic intake was cracked. I purchased a new intake from Performance Products. It's the Power-Plus Typhoon Intake made for the 99-04 Stangs. I read the Forum by Casper98GT...npi-to-pi-intake-swap-vt1878, but wanted to make sure I understood correctly and if the Typhoon intake I bought will work just the same as the PI intake he used. I still have the stock 98 GT heads on my car and wasn't sure if it will work. So if someone could reply that would be a great help and i would appriciate it. Thanks.

[MustangMatt96GT]

It will work the same!

[Patterson98GT]

Alright! and thanks alot. But another question...would u suggest the silicone route or to weld the gap that exists because of the difference in the intakes? and why? thanks again.

[MustangMatt96GT]

Ethier one will work, but if you have access to a welder and can weld then I would go that route just because it seems that it would hold up alittle better!

[Casper98GT]

Well, first off. The PP intake will work with the modifications listed.

If you can weld that then you will be much happier in the end. Just incase the silicone lets go. Which im not saying not to use silicone because i dont know anyone yet that has had the silicone let go on them . ( except if they dont know what they are doing. )

[ujslost]

When I do mine I want to weld mine, I just worry about getting the weld smoothed down enough to seal properly. How big a problem you think that will be casper?

[Patterson98GT]

Yeah...what he (ujslost) said...

[Richs96]

Hey Patterson98GT,
Let me know how that intake works out for you, I was actually thinking of finding a wreaked 00-04 GT engine but the intake may get me by till then. I'd like to know if there is a noticeable difference in power and how much.

[Patterson98GT]

Alright, Richs96. I will most likely be swaping the intakes tonight and depending on how everything works out will determine when I find out the verdict on the power.

[Patterson98GT]

And Casper will I need to drill and tap for the second coolant sensor on the Typhoon Intake as you did on your PI intake? And where could I get the tap...just at a parts store? thanks

[Patterson98GT]

..OR.. what about the Detroit Speedworks '96-98 4.6L PI Intake Adapter Kit? Supposed to come with adapter brackets and everything to swap to PI intake. link --> http://www.livernoismotorsports.com/product.phtml?p=457 ..or.. http://www.detroitspeedworks.com/piintake.htm. Let me know your opinions on that kit b/c it seems like a good deal for only $499.99.

[Casper98GT]

yes the livernois kit will work i have never seen the detriot kit and the link is bad ???

The livernois kit is good but it used to be MUCH more money when it first came out. Only problem is you now have a longer distance for the fuel injectors to spray. So you are gonna need to have it tuned on a dyno after.

If you use the silicone way no height difference. But you also have the CHANCE of leaking coolant. I am on 2 yrs now without any problems.

Anyways...welding works just fine and you will be able to smooth it out enough. And if youre STILL scared, just put a dab of silicone over it still just to be sure.

[Casper98GT]

oh yeah...as for drilling....i dont know on the PP intake never used it. Im sure a machine shop could take care of business.

[Patterson98GT]

Cool...thanks for the info. I think we'll do the welding route with a dab of silicone. And as for the drilling... 3/8 x 18 pipe thread...correct? Can't b too difficult. hopefully it all works alright. I'll let ya know. I appriciate the help.

[Casper98GT]

Not a problem

[Richs96]

Just read an interesting write up onle about the Typhoon intake on a 99. They guy stated he lost power after 3800 RPM Lost 11hp and 22ft lbs of torque. Here is the write up. I know it's only one guy's write up and not worth a grain of salt so and I am not try to slam your decision on the typhoon but I really like to get all the bang for my buck and thought you might also.
Here is were I found it: http://www.allfordmustangs.com/revie...hp/product/571

[Patterson98GT]

Thats alright...b/c i decided against using the Typhoon. The reason being that there is really no good place to drill and tap for the second coolant sensor. There was little space and it was a thin area to drill without causing it to break. So now I plan on goin with the Detroit Speedworks PI Kit that I'll get through Livernois Motorsports. Its all ready for both sensors and should b alot less hassle. I plan on leaving out the adapter plates and just welding the gap on the water ports ( maybe a dab of silicone too, just incase ) to make it work; dont wanna mess with tuning it. I'll keep ya up to date on this one too, Richs96, and thanks for the info on the typhoon...interesting.

Link to Detroit PI Intake -->

http://www.livernoismotorsports.com/product.phtml?p=457

or

www.detroitspeedworks.com/piintake.htm

p.s. : both links should work this time :wink

[Patterson98GT]

OR....yet another option... The Dorman PI Intake Manifold. Looks identical to intake in Detroit Kit...pre-drilled second coolant sensor port and everything. It goes for about $240 thru Summit.

Link -->
http://store.summitracing.com/partde...5&autoview=sku

Maybe this would b the better way to go over the kit... save $260...

I dont know yet...could i get some opinions??? thanks

[Casper98GT]

Stick with one of youre first 2 ideas. Both of them are the same doesnt matter where you buy it.

The dorman thing or whatever it was called is a NPI intake and will not yield any horsepower, just stock replacement.

[Richs96]

The man is right. it's just a stock replacement. I'd go with the other 2 also and do with out the adaptor plate so the injectors are not so far from the intake runners.
Can you buy the intake without the adaptors? Might make it a little cheaper, I think I'd call them on that one first.
Are you also going with a different upper intake and throttle body to compensate for more air?