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BBK High Flow Aluminum Fuel Rail Kit (99-04 GT)

Item 56095
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    Features, Video & Details

    • High Flow Design
    • Lightweight Aluminum Construction
    • Blue Anodized Finish
    • Fits 1999 to 2004 4.6L 2V Mustangs

    Review & Installation Video

    Review & Install Video

    The BBK High Flow Aluminum Fuel Rail Kit is available for the '99 to '04 Mustang GT owners who are looking to push the horsepower limit of their 4.6-Liter motor and need a more capable fuel rail system in order to handle the proper amount of fuel needed for their setup. This particular kit is finished in blue and includes everything you need at a more affordable price than most options on the site. The installation for fuel rails and lines aren't exactly a walk in the park, as they do require you to remove the manifold and have a little mechanical knowledge, so I'm giving this one full three out of three wrenches on our difficulty meter, which I'll talk more about later on. First and foremost, why would you need to upgrade your fuel lines and rails to a high-flow kit like this? Well, plain and simple, you might need more fuel delivered to your cylinders to keep up with the power you wanna put to the tires. Fuel rails and lines are a part of that system. There are three main components to the delivery system, which consist of fuel pump, fuel lines and rails like here, and the fuel injectors. The stock setup can only handle so much, so when you're pushing your motor to and past the limit, you need to start replacing those parts with aftermarket ones that you know can get the job done. Now, the reason I said you might need more fuel delivered is because it really depends on your particular setup. The factory fuel rails can tend to limit the amount of fuel being delivered because it can only handle so much. You're pushing more power than it can handle, which is typically right around the 500 wheel horsepower mark. They can tend to act as a bottleneck and even bend, in some cases, and break. The stock pump and injectors are known to handle more than the rails, so this might be the first stop in upgrading the fuel delivery system.With the high-flow system I've got here, you're able to open up the passageway when your motor is chugging the fuel going in in order to output its maximum potential. Since these are CNC-machined out of a lightweight billet aluminum, they're able to handle maximization far better than the stock wimpy rails ever could. The blue anodized finish helps with longevity, but it also looks pretty good peeking out under the manifold as well, which is always a plus.BBK typically makes some pretty budget-friendly parts, and this one is absolutely no different. For just above the $200 mark, this kit comes with the two rails you see here as well as the proper hose fitments and all the hardware needed for the installation. It's not a bad idea to pick up a set of braided stainless steel fuel lines as well to help complete the flow to your cylinders with some more reliable parts. Keep in mind this is going to need a tune since you're altering the amount of fuel being delivered, and you can work with your tuner to determine whether or not you wanna pick up some upgraded injectors and/or a new fuel pump to help with the delivery system completion. It really all depends on your particular setup. I know I've said that a bunch of times, but it's very important. The amount of fuel pressure, the boost levels, and if you're going with forced induction is all up between you and your tuner. There's a lot of variables that can come into play, so you wanna take that into account. The installation is definitely gonna require some mechanical expertise, as I mentioned in the beginning. As far as tools, you'll need a spring lock type fuel line disconnecting tool, which, if you don't have, you can get at your local auto parts store. Most of them will rent it out for you, so you don't have to worry about buying it for a one-time use. Also, having an 11/16ths-inch wrench, a 12-millimeter, 10-millimeter, and 8-millimeter socket and a ratchet, 5-millimeter and 5/32nds Allen wrench, white lithium grease, Teflon tape, and anti-seize locking grease as well. Obviously, very specific tools here, so you wanna make sure you have the right ones on deck before you get started. If you don't have the expertise or a helping hand to get this one installed, there's no shame handing it over to a professional to get done properly. Definitely give this one full three out of three wrenches on our difficulty meter. It'll take a couple of hours from start to finish. There have been some reports and controversy over the fitment issues with different sets of coil-on plugs and different aftermarket manifolds. The truth is this is made to work with most aftermarket manifolds and almost all plugs, include MSD. You'll definitely wanna make sure you're using the correct tools I mentioned a second ago, but other than that, there is some good, old-fashioned elbow grease involved to do the trick. There are instructions provided in the kit to help you along your way, of course, and our customer service team is always willing to give you a hand.That just about wraps this one up. So if you're the owner of a '99 to '04 GT Mustang, you might wanna check out the BBK High Flow Aluminum Fuel Rail Kit, available right here at americamuscle.com.

    Better Fuel Flow. BBK High Flow Aluminum Fuel Rails replace those skinny stock fuel rails to reliably flow more fuel to your high performance engine.

    More Power. Whether your fuel system is bone stock or already has several upgrades these BBK Aluminum Fuel Rails will make a noticeable improvement in fuel flow for more power. It is well known that the stock injectors will handle a significant amount more power than your thin and often bent factory fuel rails can provide, so upgrade to BBK's High Flow rail kit for maximum flow.

    Quality Construction. Crafted from lightweight aluminum each fuel rail is CNC machined to precise tolerances for maximum performance and completed in a blue anodized finish for longevity.

    Application. The BBK High Flow Aluminum Fuel Rails are specifically designed for use on the 1999 to 2004 4.6L 2V GT Mustangs with either stock or aftermarket intake manifolds.

    Fitment: 1999 2000 2001 2002 2003 2004 Details

    MPN# 5016

    CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

    What's in the Box
    Hardware included:
    • (2) Two Fuel Rails
    • Pre-assembled Hoses
    • All hardware for installation
    Installation Info
    Tech Specs
    Will it fit my Mustang?

      Customer Photos (13) Submit Your Photo

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        Questions & Answers (14)

        5 Top Rated Questions

        Can you run these on a 03 mustang gt without performing a tune

        • This will work without a tune yes.

        Helpful (1)

        Will this fuel rail work Edelbrock EFI intake manifold? im looking at getting the Edelbrock EFI intake manifold and would like to know if these will fit with that manifold?

        • The BBK High Flow Aluminum Fuel Rail Kit (99-04 GT) will work with either stock or any aftermarket intake manifold installed.

        Helpful (1)

        Are these fuel rails E85 Compatible?

        • Yes, these would indeed be compatible.

        Helpful (0)

        Do these fuel rail have double open sides so I could run a return style system on them?

        • These do not have double open sides.

        Helpful (0)

        What bracket is needed to mount the bbk fuel rail to the Edelbrock victor jr intake manifold

        • The two are not designed to be compatible. We have not tried this because we use Edelbrock fuel rails with Edelbrock manifolds every time for both ease of install and the quality that comes with it.

        Helpful (0)
        Post Your Question
        9 More Questions
        How would I connect a fuel pressure gauge to this? 1 answer
        Are there provisions to connect a ProSport fuel pressure gauge? 1 answer
        Will a tune be needed or up dated once these fuel rails are installed. 1 answer
        Will you gain any horsepower with the bbk fuel rail? 1 answer
        I don't see where the AN size for the rails or the hoses are listed. What is the Aeromotive AN size of the rails, and hoses. Stock is AN 6. 1 answer
        Will these fuel rails fit with a trick flow track Heat series intake? 1 answer
        Supercharged Applications? will these work well with supercharged applications making around or above 500hp? 1 answer
        upgrade fuel rail? should I upgrade to this fuel rail from stock? Also I plan upgrading coils and intake. 1 answer
        Will my nitrous kit work off these fuel rails? My fuel solinoid pulls gas from the fuel adapter from the passenger side fuel rail...I dont see a spot to screw in the adapter?? would it still work? 1 answer

          Customer Reviews (39) Write a Review

          Overall Rating 3.6

          out of 5 stars

          Installation Time:Afternoon

          Installation Cost:$100-$250

          • Performance Gain 3.033333 3.0
          • Fit 2.933333 2.9



          • 5/5

            Installation Time: Less than 1 Hour

            October 17, 2019

            Very nice product and fit well ,

            with alil bit of common sense you can make it work and its a great product , with other new products and new tune , the rails did what there meant to do!

            Luisito

            Year: 2003 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Full Day

            September 14, 2019

            Cool

            It was okay it wasn't the best but wasn't the worst good for a bottle.

            DillonG

            Year: 2003 Submodel: GT

            Helpful (0)

          • 5/5

            August 25, 2019

            Did not fit

            This did not fit on mt 03 mustang gt but is very well made great quality. Would recommend also got a fast refund from the return

            RichardG

            Year: 2003 Submodel: GT

            Helpful (0)

          • 2/5

            Installation Time: Afternoon

            July 23, 2019

            they fit... just barely.

            They are much thicker than stock, and for some reason they decided to add some of that thickness below the rail instead of on top where it would be a helluva lot easier to deal with (on top the only clearance issue is the throttle body, easily solvable with a cheap plenum spacer). On the bottom, mine, like 30-40 of these, hit every single coil. In order to get them to work, I ground off the lip on all of the coils, and added some washers on the mounting brackets to lift them up. Basically I could unbolt all of the coils as the fuel rails will keep them all bolted down - they're that tight. Unfortunately this also makes it so that the fuel rails will have to come off if I need to do spark plugs again... Also, having one helicoil from a blown plug, that plug sits a good 1/8-3/16 higher than the rest, and that was a pain to get to fit... On the bright side, in the end they work, and are of good quality overall from a build perspective (especially when compared with some of the 50 dollar kits on amazon). So if like me, you have damaged stock fuel rails (from some genius previous owner who took a hammer to the stock ones) or whatever the case may be and you can't find stock ones anywhere, then these will do the trick.

            Fosters

            Year: 2004 Submodel: GT

            Helpful (0)

          • 4/5

            May 22, 2019

            Great! But There Were Some Complications

            It is a great product HOWEVER there were some complications which I am sure not everyone has but if you have seating/positioning issues here is what you should do: The fuel rails did seat on the injectors but sat way to high above the mounts on the cool air manifolds (I have PSI Performance Manifolds) If you Try to tighten and secure the rails to the cool air manifold it will bend the metal tabs causing it to sit diagonally, not allowing it to secure the fuel injectors into the fuel rails. This will let the fuel spill out into the engine bay when turning the key over to the ON Position (you can fix this by adding spacers in between the chrome rail tabs and the cool air manifold so it can rest and seat properly onto the cool air manifold, add in longer bolts if you want to be on the safe side) Another issue is the throttle body wont allow the passenger side to seat properly if at all and you can scuff the paint on the fuel rails attempting this (you can fix this by adding a throttle body spacer to lift the throttle body about a quarter inch upwards which was the perfect amount and adds a small amount of HP) Doing this will allow you to seat the Fuel Rails and secure them and will allow space for you to attach the cool air hose as well. OTHER WISE everything works great and was supper easy to install. **This Project Only Took Me a Little Over 2 Hours**

            MorganW

            Year: 1999 Submodel: GT

            Helpful (0)

          • 4/5

            Installation Time: Shop Install

            May 07, 2019

            Mustang gt04

            They will work with Typhoon intake manifold, and 78mm bbk tb,but u will need SR performance spacer. *note* get new injectors o-rings frm local part store. Definitely better throttle response. I'm satisfied

            ErnestT

            Year: 2004 Submodel: GT

            Helpful (2)

          • 2/5

            March 12, 2019

            Not a good buy

            No instructions and not compatible with my Victor Jr. intake.

            BrianG

            Year: 1999 Submodel: GT

            Helpful (0)

          • 1/5

            March 05, 2019

            Bad part.....usual for bbk

            These fuel rails hit multiple coils on driver and passenger side not allowing seating on injectors. The aftermarket coils I'm running are the same height as stock ones so this part flat out doesn't fit. Even if they did seat right the mounting brackets were about an 1" off on passenger side and 1/2" on the drivers side. Not to mention the bolts for the mount brackets on the rail were too long and bottomed out before they were tight

            Shetlynexspress46

            Year: 2003 Submodel: GT

            Helpful (1)

          • 4/5

            Installation Time: Weekend

            February 19, 2019

            Will not fit a typhoon intake

            Nice kit and quality made just not compatible with the typhoon intake I currently have on my car. Will have to return and find a compatible fuel rail.

            MattB

            Year: 1999 Submodel: GT

            Helpful (3)

          • 5/5

            November 22, 2018

            99gt

            good product!!! ill definitely keep buying from you guys

            JoseA

            Year: 1998 Submodel: Cobra

            Helpful (3)

          • 5/5

            Installation Time: Afternoon

            November 01, 2018

            bbk high flow fuel rail

            product is great especially if putting on a stock intake.

            AlfredoA

            Year: 2002 Submodel: GT

            Helpful (3)

          • 5/5

            Installation Time: Less than 1 Hour

            June 27, 2018

            Bbk high flow fuel rails

            The bbk high flow aluminum fuel rail kit give my car an extar power on the fuel not even on the fuel but u feel much more throotle response

            JavierJ

            Year: 2000 Submodel: GT

            Helpful (3)

          • 3/5

            Installation Time: Full Day

            June 26, 2018

            John Stommel / senior technician

            First, no instructions / tips. Second, wrong size "0" ring for the pressure reg. Three , no indication of needed upper intake spacer to allow throttle body to clear fuel rail, when using a typhoon intake. These set backs cost time not anticipated.

            JohnS

            Year: 2000 Submodel: GT

            Helpful (5)

          • 2/5

            May 20, 2018

            Wrong part but usable on another project car.

            Good product but does not fit 32valve 4.6 SVT engine.

            MarkG

            Year: 1999 Submodel: Cobra

            Helpful (4)

          • 5/5

            Installation Time: Less than 1 Hour

            March 17, 2018

            Bbk fuel rail

            I love it make my engine look better and I can tell it has better performance

            NathanB

            Year: 2000 Submodel: GT

            Helpful (5)

          • 3/5

            Installation Time: Afternoon

            March 14, 2018

            Bad design

            Seems to be good quality material but the design isn't the greatest. The bolts included are to long so had to go buy other ones. When installed 2 9f the brackets hit the coils ( I have SR coils), website states they fit with them. In the instructions found online it states to take both small O-rings off of the fuel pressure regulator and use the one big on they included. Well I did that and of course it sprayed fuel everywhere. So put one of the small ones back on above the big one and no more leak.

            KyleP

            Year: 2000 Submodel: GT

            Helpful (8)

          • 1/5

            Installation Time: Less than 1 Hour

            March 11, 2018

            Horrible fitment

            Would not recommend the fitment is really bad. Every coil hits the rail.

            ZachB

            Year: 2001 Submodel: GT

            Helpful (5)

          • 5/5

            February 04, 2018

            Good product

            I had to return the item due to the fact they don’t work with aftermarket coil packs and that part don’t make since but the product seem to be made well was very nice looking just didn’t fit my car

            MattB

            Year: 2002 Submodel: GT

            Helpful (4)

          • 4/5

            Installation Time: Less than 1 Hour

            February 01, 2018

            Work good

            Had some Trouble make it fit plus the fuel line connecters wouldnt stop shooting out gas so i had to make get different connecters to make it work other then that looks good under da hood and i have it running

            Juanito2097

            Year: 2000 Submodel: GT

            Helpful (4)

          • 5/5

            Installation Time: Less than 1 Hour

            December 16, 2017

            Worth the money

            If your looking for some bigger fuel rails these are the ones. Look good under the hood, and aluminum. Easy install took me about 45 min to install. You may need to bend the mounting brackets so the fuel rail sets parallel with the intake. But other than that a great product.

            MichaelP

            Year: 2002 Submodel: GT

            Helpful (8)

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