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Ford Performance Performance Improvement Intake Manifold (96-04 GT w/ PI Heads)

Market Price $302.37 You Save 11% ($32.40)
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  • Item 24010
  • MPN# M-9424-P46

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Features, Video & Details

  • Great for PI Head Swap
  • Black Finish
  • Composite Plastic Construction
  • Aluminum Crossover
  • Requires New Factory Style Manifold to Head Gasket & Thermostat Gasket
  • Fits 1996-2004 GT Mustang with Performance Improvement (PI) Heads

Review & Installation Video

Review & Install Video

Hey, everybody. I'm Justin with and this is my detailed review of the Ford Racing Performance Improvement Intake Manifold available for all '96 to '04 Mustang GTs equipped with PI heads. You should be checking out the Ford Racing Performance Intake Manifold if you've already swapped or plan on swapping over to the very popular PI or performance improvement heads with your two-valve GT, and therefore need a very affordable performance intake manifold solution. This would also be a great option out there for all 2001 to 2004 GTs who may be suffering from a damaged factory intake manifold and are looking for an exact reproduction of that manifold. A lot of you SN guys probably already know, but making the switch over to a set of PI heads is a very popular and very affordable way to get some more performance out of your two-valve GT. The best part is, guys, you can find these PI heads everywhere and for super cheap because Ford use them on a lot of stuff, including the F150, the Explorer, the Crown Vic, and of course, the Mustang. Those PI heads were introduced back in 1999 and were immediately a huge improvement over the non-PI heads in many different aspects. The heads float a lot better than the factory non-PI heads, they had a much hotter cam, and the combustion chamber was actually reshaped slightly, raising the compression ratio in the process. Altogether, this all resulted in a pretty substantial bump in power. How much power exactly? Well, non-PI head equipped two-valve GTs are putting down and advertise 210 horsepower. With the PI heads, the car was now making 260 horsepower. So again, a big jump in power. The totally redesigned heads and that hotter cam, Ford had to totally redesign the intake manifold to keep up with that better flowing top end and that's the intake manifold we're looking at here today. Again, guys, this is the same exact manifold used on all 2001 to 2004 4.6-liter Mustang GTs making it a Direct Bolt-On as you might expect. This pretty much is still a Direct Bolt-On from 1999 and 2000 GTs. However, you will need one additional part, basically an alternator bracket, but that's about it. I do want to point out guys that you can actually use this intake manifold on non-PI Heads and still get a nice gain in power, although some additional work is necessary. It's really not as bad as you might think. You just need a set of the PI gaskets to go in between the manifold and the heads and you will need to get some gasket maker to go around one of the mismatched water jacket areas. It might sound a little shady, but honestly it's not as bad as you think. In fact a lot of people do it with great results. Ford Racing Intake Manifold has been constructed from a black composite material and features an aluminum cross over here as you can see. It has an effective RPM or operating range from basically idle to about 6000 RPM. Now, there are better options out there for higher revving engines. So maybe if you are planning on building a nasty all motor set up using a big cam, you'll want to turn a higher RPM. You might want to check out the Victor Junior from Edelbrock as opposed to this intake manifold here. I do also want to point out that you can use aftermarket throttle bodies and aftermarket intake plenums with this intake manifold from Ford Racing. In fact, it's something many of our customers have done and they've reported great success in doing so. Feel free to read up on the 100-plus five star reviews on this product back on the product page. You just might get a little better idea of what to expect when installing. On the topic of price, guys, again, I think you'll find this to be one of your more affordable options when it comes to your two_valve GT or aftermarket intake manifold, especially when comparing to some of your other options here on this site, landing you right in the mid-$200 range. Now, your install is definitely going to differ here guys depending on your year, of course, and also depending if you plan on doing this intake manifold swap along with the head swap or if you're just going to do the intake manifold by itself. Regardless, before you get started with the install, make sure you get a fresh set of gasket from the intake manifold to the head and also don't forget a fresh thermostat gasket along with some fresh coolant. This one will definitely test your tool box a little bit. So just make sure you have a decent set on hand before getting started and also you're going to want to make sure you have something on hand to catch the coolant when you do make the swap. Now, if you're doing just the manifold by itself, I'm going to say two out of three wrenches on the difficulty meter, really not too bad here. But if you are doing this with the full head swap, it's going to raise it to a full three out of three wrench job. Overall, guys, just leave yourself a few hours in the garage guys or driveway to get the manifold in place. The Ford Racing Performance Improvement Intake Manifold is a great performing, budget friendly intake manifold for all SN owners out there with PI heads and even those without as we talked about a little bit earlier. So be sure to check out an option for your two valve-GT right here at

Perfect for PI Head Swap. This is the same exact production Intake Manifold used by Ford on the 2001 to 2004 4.6L SOHC 2V V8 GT Mustangs. It is less expensive and a great alternative to high dollar aftermarket performance intake manifolds when performing a PI head swap on your Stang.

Application. This Ford Racing Performance Improvement (PI) Intake Manifold is a direct fit on 1999-2004 4.6L GT Mustangs with PI head ports. It can also be used on 1996-1998 4.6L engines with PI heads, with additional parts and modifications required.

Technical Note. 1999 and 2000 GT Mustangs will require the use of an alternator bracket from a 2001-2004 GT. All Mustangs will require a new factory style manifold to head gaskets, part numbers # YL3Z-9439-BA (Driver Side) & YL3Z-9439-A (Passenger Side) and a thermostat gasket.

Mustang PI Intake Manifold Swap Overview

Fitment: 1996 1997 1998 1999 2000 2001 2002 2003 2004 Details

What's in the Box
  • (1) PI Intake Manifold
  • (1) Pre-installed "Intake to Plenum" Gasket
Installation Info
Tech Specs
Will it fit my Mustang?
  • GT - 96, 97, 98, 99, 00, 01, 02, 03, 04

Mustang PI Intake Manifold Swap Overview

Will require a new factory style manifold to head gasket and a thermostat gasket

1996-1998 Mustang do not have PI Heads from the factory, will require PI heads for proper fitment

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Most Helpful Reviews

ford racing lntake manifold

Very nice intake. Installed very clean andsmooth. Everything hooked back up perfectly. One thing, make sure you get the right gaskets. I have a 2003 mustang Gt - 4.6 5 - speed. Right gaskets no. 2L3Z-9439AA ...

Read More
Helpful (1)

I learned a lot here...

To date, my mechanical expertise consisted of changing out a thermostat, pouting stop leak in a radiator, and changing the battery and alternator on my '94 GT. 3 months and 700 miles into my '01 GT I ...

Read More
Helpful (1)

Overall Rating 4.8 out of 5 stars
Read All 100+ Reviews

Customer Photos (37) Submit Your Photo

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28 Questions / 10 Answers

Ask a Question

Does this part improve fuel economy as well as horsepower. My mustang is a 96 gt 4.6l. It has full exhaust, longtube heads. Upper intake plenum, throttle body, cold air intake. I'm just wondering if this would be a good add on or replacement


  • Increases air flow so yes there will be an improvement as far as better fuel economy not sure


Show 4 more answers Helpful (20)

Does the Ford Performance Performance Improvement Intake Manifold come with a warranty?


  • Unfortunately, the Ford Performance Performance Improvement Intake Manifold do not come with a warranty. For more information regarding Ford Performance's warranty, we recommend referring the their website directly at the link provided below:


Helpful (1)

What intake manifold gaskets and thermostats gasket would I need to order for this manifold? I don't see anything on this site.


  • This will only require a new factory style manifold to head gasket and thermostat gasket which can be found at any local parts store.


Helpful (1)

Will i see a power gain? Will i see a power gain over the stock intake manifold on my 2000 gt?


  • No, your 2000 GT manifold is the same as this one except it has a plastic coolant crossover if it is the original one. The plastic crossovers ALWAYS crack and if yours hasn't yet, you are on borrowed time.


Show 1 more answer Helpful (1)

I have a 2001 4.6L GT will this intake work and will i need the alternator braket ?


  • This intake will work on your car and you will not need the alternator bracket.


Helpful (0)

I need to locate both head gaskets for the passenger and driver-side ford intake manifold 96 - 01GT ? I only see one side available via website..


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Customer Reviews (100+) Write a Review

Overall Rating 4.8

out of 5 stars

Installation Time:Afternoon

Installation Cost:$250-$500

  • Performance Gain 3.747826 3.7
  • Fit 4.854701 4.9

  • 5/5

    July 14, 2016

    ford racing lntake manifold

    Very nice intake. Installed very clean andsmooth. Everything hooked back up perfectly. One thing, make sure you get the right gaskets. I have a 2003 mustang Gt - 4.6 5 - speed. Right gaskets no. 2L3Z-9439AA .


    Year: 2003 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Full Day

    May 22, 2015

    I learned a lot here...

    To date, my mechanical expertise consisted of changing out a thermostat, pouting stop leak in a radiator, and changing the battery and alternator on my '94 GT. 3 months and 700 miles into my '01 GT I took a hard bump and the nipple on the back of the 130k mile old intake manifold disintegrated spraying coolant everywhere. After reading the reviews and repair manual (I feel like I owe John Collmann $700), I decided to dive in. I spent another $150 on a torque wrench, a replacement heater hose, a drain pan, antifreeze, a telescoping magnet (the #1 most indispensable tool in this build), gaskets (NOT INCLUDED!!), a shop vac, a work light, and some other knicknacks. The #1 hardest part for me was re-threading the throttle. Other than that, it was just following the steps to tear everything off, stopping to google things like removing the fuel line with a bottle cap (guide said 3/8", my fuel line is a 1/2"), and spending way too much time dealing with heater hose drama. From here I am comfortable tearing things down and messing with fuel injectors, coil packs, spark plugs, and most anything in the coolant system.


    Year: 2001 Submodel: GT Chattanooga, TN

    Helpful (1)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $100-$250

    March 17, 2015


    I live in the desert of California and over time my intake was cooked to a crisp. Found this part on American Muscle and couldnt be happier. Combined with new coil packs and a cold air intake, my car runs a lot better in these extreme conditions.


    Year: 2000 Submodel: GT Cathedral City, CA

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    January 19, 2015

    Sometimes stock is best

    The intake was purchases as a replacement to a cracked intake that I thought was stock. Turns out the stock one fits much, much better and it made a small power gain over the poor replacement that I had before. I'd highly recommend getting this one instead of a poor slightly cheaper replacement. Thanks AM.


    Year: 2000 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    January 06, 2015

    This product looks great and stands out.

    I honestly say this manifold is seriously working good for my car, I have never had my car running like how it is today.


    Year: 2001 Submodel: GT Casa Grande, AZ, USA

    Helpful (1)

  • 4/5

    Installation Time: Afternoon

    September 21, 2014

    Only One flaw ......

    This intake manifold fit perfectly and performs as expected. The only flaw that I was disappointed at was evident grinder marks on the silver coolant portion that appeared to be made as a fit adjustment. Not really noticeable after install, but regardless, they are there.


    Year: 2002 Submodel: GT Cochranville, PA 19330, USA

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    August 19, 2014

    Great replacement!

    My manifold cracked where the aluminum crossover joins the plastic, and the hunt was on for a new one. Local dealers wanted $600+ for a manifold! Luckily American Muscle had one for a third of that. The manifold is bolt on replacement and smog legal here in california. No performance gains, but it is a bolt on replacement and got my car running again.


    Year: 2004 Submodel: GT California, USA

    Helpful (1)

  • 5/5

    Installation Time: Full Day

    August 11, 2014

    Does what it's designed to do

    I, like most owners of the 99-04 series, had a cracked crossover at the thermostat housing. I ordered this on a Thursday and it arrived on Saturday. Unfortunately, the part was damaged during shipment from Ford to AM but I was able to get everything sent back and a new part was sent out same day. Very good response time from AM and the new part came fully intact. I can't do mechanic work where I live so I had to pay someone to do it but the fitment was fine and there is no more leaks. No performance gains but the main thing is that my coolant system isn't leaking anymore. Thanks to AM for fast shipping and great customer service!


    Year: 2000 Submodel: GT Washington DC

    Helpful (1)

  • 4/5

    Installation Time: Afternoon

    January 27, 2012

    Nice product

    Make sure you have the proper gaskets with this, my local parts store gave me the wrong ones for a 2000 gt and antifreeze leaked all over. American Muscle was great though, I ordered it and had it less than 24 hours later!


    Year: 2000 Submodel: GT Souderton, PA

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    November 17, 2011

    Stock part, Inexpensive, with great service

    AM had this to me within a few days after I ordered it and has great customer service. I have an 03 GT and these came stock on that year. If your old one blew and your not racing the car, this is the manifold for you. Install would have only take 2 hours had I done ANY work on this car before. Of course I can feel a difference from the factory original put in 2003...


    Year: 2003 Submodel: GT FL

    Helpful (2)

  • 4/5

    Installation Time: Afternoon

    September 12, 2011

    Perfect Fit

    I bought this intake manifold for my '99 Mustang GT, which has 165,000 miles on it. I installed the intake in about 2-3 hours and haven't had any problems since. The only reason I didn't give it a 5 star review is because the aluminum on the intake was cosmetically damaged. It was extremely scratched. If you're anything like me, you want everything under the hood of your Mustang to look pristine. Luckily I had some spray paint made for rims, which I used to paint the aluminum and it looked new again.


    Year: 1999 Submodel: GT

    Helpful (1)

  • 5/5

    May 25, 2011

    Revised Review for a Revised Manifold

    I'd like to be fair and revise my review. Since my last review, I've learned that Ford has revised this intake manifold to have aluminium coolant runners instead of the horrible plastic. You'll notice it because it's the only aluminum area on the manifold. This basically fixed the inherent problem with this intake, and I have to appluad Ford for revising this, because we all know they surely didn't have to. This intake is now a viable option for replacement. For those short on money it's a really, really good buy; because you're now getting the same reliability that people could only get from buying an all aluminum intake manifold, for as little as 1/4 the price. This manifold will not crack like the old one, so you can be assured your money will not go up in white smoke 12 months later.


    Year: 2000 Submodel: GT

    Helpful (2)

  • 4/5

    October 18, 2010

    good quality

    This intake would be a great part over the more expensive brand out there for people that are doing PI head swap, other than that, this intake is identical to the 4.6 PI intake manifold that came from stock. same ford quality and finish. i replaced mine because it cracked near the thermostat and was leaking antifreeze like crazy. if you would like to avoid this problem, i would just recommend getting the typhoon intake, other than that, great product! it was cheaper than my local car parts store (about $20) and they said they had to special order it and would take 10-14 business days. AM had it at my door in 4 days (texas). not to mention, it is a FORD OEM product!


    Helpful (4)

  • 5/5

    July 20, 2011


    My intake manifold cracked and was spraying water all over the engine bay. I purchased this product and failed to read the note saying I would need to buy a new alternator bracket for an 01 - 04 Mustang GT. This was a bit frustrating until I found out that the replacement factory manifold would cost me $765.00. After buying this product, intake gaskets, throttle body gaskets (upper and lower), alternator bracket and bolts I spent exactly $270.00 and saved myself over $500.00. I am very pleased with the cost and the performance. This product works very well with the BBK Cold Air Intake Kit. The engine responds very quick and feels as if came alive. Installation was easy but somewhat time consuming. I spent probably a total of three hours on tear down and installation. Torque your bolts at 18 - 20 ft lbs. No Leaks!!!!

    Joseph Guglielmi

    Year: 2000 Submodel: GT

    Helpful (19)

  • 5/5

    December 14, 2009


    i broke the nipple on the back of my old manifold. ford wanted $2100 to fix way!!!!! so after getting the manifold and all the other parts, it was about $400.not bad!!! the Installation Instructions are a little off and left 1 or 2 things out. but i did it on my 2001 4.6 gt and it was e/z. the things that should be in the Instructions are...1 the hose running along the v of the block, get a 13mm Standard Locking Flex Ratcheting Combination Wrench. at Sears it was $17... the bolt is really in there ...2 the new water pump nipple. i had to put silicone around it. 3 when i put the alternator bracket back on the holes were off so i drilled a new 1 in the alternator great... just take your on it

    Drew ski

    Year: 2001 Submodel: GT

    Helpful (22)

  • 5/5

    May 24, 2010

    Perfect fit!!

    Quality service and quick delivery from American Muscle, you guys are GREAT! Intake went on without a hitch, had to modify existing alt bracket (piece of cake) took about 1 1/2 hours. American Muscle is and will always be my Mustang parts headquarters.

    Troy, Ohio

    Helpful (23)

  • 5/5

    July 16, 2009

    Blue Oval

    It was such a great feeling to receive a genuine Ford Motor (racing) Company 4.6L Performance Improvement (PI) Intake Manifold. This was the [exact] same product that official Ford car dealers were offering for hundreds $$ more. Thanks American Muscle for once again providing prompt and reliable products and service.


    Helpful (10)

  • 5/5

    May 14, 2010

    Amazing American Muscle

    American muscle for the win AGAIN. Not only is the part MUCH cheaper than at my local shops, but I actually got it MUCH faster than my local shops could even order it in! I was promised 5-7 business days and it showed up in 4, all the way from PA to ALBERTA CANADA. As usual, im very pleased with AM


    Helpful (16)

  • 5/5

    March 10, 2010

    Intake Manifold

    This manifold was exactly what I was looking for! The manifolds that are available in town are the Dorman brand and do not use the factory gaskets! This manifold has the aluminum cross over that does away with the distortion found in the plastic manifolds. Thanks American Muscle!

    Austin Park

    Helpful (13)

  • 5/5

    June 27, 2010


    The PI intake manifold was shipped fast and was the correct part. best price anywhere! Fit nicely but had to modify my alt. bracket (2001 stang). American muscle has always been outstanding to buy from.

    Alex Rodgers

    Year: 2001

    Helpful (8)

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