Free Shipping On Orders Over $49. Details

Talk to a Mustang Enthusiast
1-877-887-1105
M-F 8:30A-11P, Sat-Sun 8:30A-9P
Win $5,000 For Your Mustang! Enter daily!

Billet Adjustable Fuel Regulator (86-93 5.0L)

$0.00
Market Price $106.99 You Save 16% ($17.00)
Our Price

$89.99

FREE Shipping

  • Item 41022

Will this fit your Vehicle?

In Stock Ships same business day.
Ship to: Ashburn - 20149
Sorry, please enter a valid US or CA postal code
We're sorry, zip can't be updated at this time.
    Create a list
    Add to New List

    Saved - View your saved items

    We're sorry. We couldn't save this product at this time.

    Features & Details

    • Easy to Adjust.
    • 30 to 100 PSI Range.
    • Billet Aluminum.
    • Leak-Free Design.
    • Fits 86-93 5.0 & 87-93 5.8.
    Replace or Upgrade. Whether you're replacing a failing OE fuel regulator or upgrading it, this billet adjustable fuel regulator will give you the control you need over how much juice your Pony is getting. Whether your Mustang is stock or modded, adding an adjustable fuel regulator is a great upgrade over your stock unit for maximum control.

    Easy to Adjust. This billet aluminum adjustable fuel regulator is adjustable from 30 to 100 PSI for a wide range of applications. And best of all, any necessary adjustments can be made without removing the vaccuum line by a separate port on the top of the unit.

    Quality Construction. On the outside, this high performance fuel regulator is made to last out of durable, lightweight billet aluminum. On the inside, it's designed for leak-free performance with not one, but two internal o-rings.

    Application. This billet fuel regulator is designed to fit the 86-93 Mustang 5.0 and 87-93 5.8.

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

    What's in the Box
    • (1) Fuel Regulator
    Installation Info
    Tech Specs

      Customer Photos (8) Submit Your Photo

      View All 8 Photos

        Questions & Answers (7)

        5 Top Rated Questions

        Is this Fuel Pressure Regulator E85 compatible?

        • The Kirban Billet Adjustable Fuel Regulator is compatible with E85.

        Helpful (1)

        does this come with new mounting bolts?

        • This does not include new mounting bolts. 

        Helpful (0)

        I put a 255 lph pump in my stock mustang gt seems to be loading up at idle is that because the regulator can't keep up with fuel pump?

        • This could be the cause but we would advise having your vehicle taken into a service professional to be examined and diagnosed as we would be unable to determine this at this time as we are not underneath or behind your vehicle. Once you do have this looked into please contact us at 1-877-887-1105 for further assistance or part recommendations. 

        Helpful (0)

        Will this fit stock fuel rails!

        • The Kirban Billet Adjustable Fuel Regulator is compatible with OEM fuel rails.

        Helpful (0)

        Hello AM, I have BBK fuel rails and need a regulator, the BBK Regulator seems to have not so good reviews...will this work with BBK rails? Thanks, 1990 mustang 5.0

        • The Kirban Billet Adjustable Fuel Regulator would be compatible with the BBK Fuel Rails, as well as any other fuel rails that accept stock style regulators.

        Helpful (0)
        Post Your Question
        2 More Questions
        Is this the same thing as a "voltage regulator"? 1 answer
        Is there an access port to tap for a fuel gauge? 1 answer

          Customer Reviews (39) Write a Review

          Overall Rating 4.9

          out of 5 stars

          Installation Time:Less than 1 Hour

          • Performance Gain 4.363636 4.4
          • Fit 4.941176 4.9



          • 5/5

            Installation Time: Afternoon

            June 11, 2019

            Billet Adjustable fuel regulator

            Fit and performs flawlessly. Great price. Fast shipping. No hassles thanks AM. Seen a bit of of a power gain. Smoother idle and acceleration. Highly recommended.

            Dannyboy

            Year: 1992 Submodel: LX

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            April 25, 2019

            Regulator

            Had one on the car for 12 years, did a top end kit and decided to purchase a new one---same exact regulator, just new. All is good

            John

            Year: 1991 Submodel: LX

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            April 22, 2019

            Great item

            Great item very easy to install and set up. Packaging could have been better. It was in a bag in an oversized box with no padding.

            Sr71frk

            Year: 1987 Submodel: LX

            Helpful (0)

          • 5/5

            Installation Time: Afternoon

            February 23, 2019

            Great

            Works great on my EFI 460 Powered Ford. I liked my first one so much I thought I would get another.

            Skitter302

            Year: 1989 Submodel: GT

            Helpful (3)

          • 5/5

            Installation Time: Afternoon

            August 23, 2018

            Kirban adjustable fuel pressure regulator

            I am now able to adjust fuel pressure where it needs to be.

            Robert

            Year: 1990 Submodel: GT

            Helpful (4)

          • 5/5

            Installation Time: Less than 1 Hour

            June 14, 2018

            Fit great but still waiting on install

            Good price fit Great but still waiting on install of product

            JeffreyR

            Year: 1990 Submodel: LX

            Helpful (4)

          • 5/5

            Installation Time: Less than 1 Hour

            June 03, 2018

            Love it

            It works awesome Direct Fit bolts right up with no problem and looks good too!!

            ErinP

            Year: 1988 Submodel: LX

            Helpful (4)

          • 5/5

            Installation Time: Less than 1 Hour

            April 27, 2018

            Kirban FPR

            High quality product. Worth every penny and lower priced than the BBK model!

            Cubby

            Year: 1989 Submodel: LX

            Helpful (4)

          • 5/5

            Installation Time: Less than 1 Hour

            April 16, 2018

            Great regulator

            It worked great on my 1993 mustang with a 331 stroker motor which is used on track days one of the best one on the market and great price

            nick

            Year: 1993 Submodel: LX

            Helpful (4)

          • 5/5

            Installation Time: Afternoon

            April 09, 2018

            Kirban adjustable fuel pressure regulator

            I really like that its billet, well built, nice looking piece. It’s easy to adjust, works great and looks great too! I’ve only had it on my car for about a week but so far working well and doing what it’s suppose to do! For the price and looks and build it’s unbeatable! My install time was due to the fact I did not take off upper intake, only took off throttle bracket for cable. It’s hard but can be done.

            StephenM

            Year: 1988 Submodel: LX

            Helpful (4)

          • 5/5

            Installation Time: Less than 1 Hour

            January 18, 2018

            great

            bought it for my 2.3l turbo car when I was running a stock ecu at 35 psi haha worked great tho!!

            Antonio

            Year: 2017 Submodel: GT

            Helpful (5)

          • 5/5

            Installation Time: Less than 1 Hour

            January 10, 2018

            Great product

            Makes life a lot easier when tuning car and if you have to diagnose problems.

            NicholasH

            Year: 1989 Submodel: GT

            Helpful (5)

          • 4/5

            Installation Time: Afternoon

            January 02, 2018

            Best bang for the buck

            Good quality, great price. Easiest install is to take upper intake off then disconnect fuel rails and remove rails to properly get to regulator Allen key bolts. Takes more time but is much easier in the long run. Will take about 1.5hrs for average "mustang head".

            DanielK

            Year: 1990 Submodel: GT

            Helpful (5)

          • 4/5

            January 01, 2018

            Great product

            Love this FPR easy to use and install I just wish I could mount a fuel pressure gauge to the regulator itself

            Dylan

            Year: 1989 Submodel: LX

            Helpful (4)

          • 5/5

            December 09, 2017

            Budget build

            I have not used this product yet. It is installed on my motor that on an engine stand. This isn't the first adjustable fuel pressure regulator that I have used but it is the sweetest looking one I've purchased. I bought it because of how low they advertise the fuel pressure can be adjusted to. On a 306 cube motor with 24lb injectors you don't need a lot of pressure. When I do get my motor going I write another review

            ToddB

            Year: 1988 Submodel: LX

            Helpful (5)

          • 5/5

            October 30, 2017

            What the truth needed

            I have fuel injection pressure problems with my 1992 Ford truck (302 engine). I am running duel tanks and fuel pumps. I installed a fuel pressure gauge and discovered both pumps run below 40 psi. I then installed the Kirban fuel regulator in about 2 hours, adjusted the fuel pressure to 40 psi, and the truck ran as good as it ever has. One of my fuel pumps could not supply the 40 psi required (new Autozone pump). I will replace with a Motorcraft pump and test the system.

            RussellL

            Year: 1992 Submodel: GT

            Helpful (4)

          • 5/5

            October 18, 2017

            Great product

            Great product for a upgrade! Recommend to anyone looking for a FPR

            ChristopherL

            Year: 1990 Submodel: GT

            Helpful (4)

          • 5/5

            Installation Time: Less than 1 Hour

            September 15, 2017

            Kirban fpr

            This is a very nice quality piece, very well made and super easy to install, I used this with bbk high flow rails and fit perfectly. One thing I would add is it's been nice if it had a port for a guage. Other than that great piece.

            FranciscoM

            Year: 1990 Submodel: GT

            Helpful (4)

          • 5/5

            Installation Time: Afternoon

            July 24, 2017

            Great part

            Excellent fit, easy to adjust, no leaks. Holds the pressure perfectly. Looks great too.

            WilliamD

            Year: 1988 Submodel: LX

            Helpful (4)

          • 5/5

            Installation Time: Afternoon

            July 01, 2017

            Kirban Billet Regulator

            Superbly made,fits perfectly,installed with a new liquid filled gauge,controls pressure accurately on my Hellion Turbo Fox.

            ChrisT

            Year: 1989 Submodel: LX

            Helpful (4)

          Related Mustang Categories