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JMS PowerMAX V2 FuelMAX Fuel Pump Voltage Booster (11-14 GT, V6)

Item 387505
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      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • PowerMax V2 - FuelMax Fuel Pump Voltage Booster
      • More Fuel for More Power
      • Increases Fuel Pump Voltage Output by Up to 85%
      • Supports Up to 1000hp with the Stock Factory Fuel Pump
      • Adjustable Voltage Ramp in / Ramp Out
      • Designed to Activate Via Ground or Voltage Signal
      • Plug-N-Play Wiring Harness - Easy Installation
      • Compatible with 12V and 16V Battery Systems
      • Fits 2011-2014 V6, GT And BOSS Mustangs


      More Fuel, More Power. If your 2011-2014 S197 Mustang is starving for fuel you may need to give your factory fuel pump a helping hand with a JMS FuelMAX - Fuel Pump Voltage Booster. This JMS Fuel Pump Voltage Booster is designed to increase your fuel pumps voltage output by up to 85% to pump more fuel, and it can support up to 1,000 horsepower.

      Voltage Activated. The JMS FuelMAX - Fuel Pump Voltage Booster is designed to activate via a Ground or a monitored 0-5 volt external signal (MAP, MAF, TPS or PPS sensor signal).

      Adjustable Voltage Ramp In and Ramp Out Rates. The FuelMAX Fuel Pump Voltage Booster allows you to correct and eliminate fuel pressure spikes that occur when the fuel pump voltage is rapidly increased or decreased giving you maximum control over the voltage ramp-in and ramp-out rate. The voltage can be managed via time or monitored voltage and is easy to setup via simple to use controls.

      Modern Electronics. The FuelMAX Fuel Pump Voltage Booster features JMS's exclusive state of the art digital technology with 10 gauge heavy-duty wiring and industrial grade heat-sink all housed in a proprietary sealed enclosure. This JMS Fuel Pump Voltage Booster comes complete with plug and play wiring harness using OEM style connectors for a quick installation.

      Plug and Play Installation. The FuelMAX Fuel Pump Voltage Booster features a simple plug-and-play wiring harness that does not require any cutting or splicing of the stock wiring in your Mustang, so it can be easily installed or removed if necessary. The FuelMAX Fuel Pump Voltage Booster is designed to be installed inside the vehicle cabin or in the trunk away from direct or prolonged contact with water or extreme engine temperatures.

      Application. This JMS FuelMAX - Fuel Pump Voltage Booster V2 is specifically designed to fit 2011 to 2014 Mustangs including the V6, GT and BOSS models with either a 12V and 16V battery system. Does not fit Shelby GT500 models.

      Fitment: 2011 2012 2013 2014 Details

      MPN# P2000PPM11

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (6)

      Write a Review

      Ratings Summary

      5.0 out of 5 overall rating from 6 customers

      Installation Time: Less than 1 Hour

      • August 06, 2019

        5 2013 V6 - StevenS Installation Time: Less than 1 Hour

        2013 V6 Mustang Fuel System

        I have a 2013 Mustang V6 with a procharger. I have 90lb/hr injectors and a deatschwerks fuel pump, but i was still losing fuel at the top end. This booster allowed me to keep the fuel pumping all the way to 7000 RPM. Great product that just plugs in and super easy to set up.

        Helpful (0)
      • August 10, 2018

        5 2014 V6 - RubenO

        Good investment !

        Installation is easy but takes time, I felt a big difference after I turned it , on the second gear I feel the kick but make sure as it's explained replace the fuel pump fuse with higher Amp comes with the package. Over all very happy for the money I spent.

        Helpful (5)
      • August 25, 2016

        5 2013 GT - Mikey

        Stop thinking and buy

        The Jms is by far the easiest install to anything I've done on the car. It's all plug and play. Jms is quality stuff and my car feel much more responsive with it.

        Helpful (9)
      • June 17, 2016

        5 2012 GT - CaliforniaspecialGT Installation Time: Less than 1 Hour

        JMS fuelmax fuel BOOSTER

        Awesome product and awesome installation instructions. Very easy to install and gives you the confidence to do it right the first time

        Helpful (8)
      • June 15, 2016

        5 2013 GT - madmadigan Installation Time: Less than 1 Hour

        Would recommend.

        Product was very easy to install. Simply plug in and set. Hardest part was running the cords. Once installed was very simple to adjust and set once you see how it works with the amount of throttle you give to when the led starts to blink.

        Helpful (8)
      • April 02, 2016

        5 2014 GT - Bluegoose Installation Time: Afternoon

        Very nice

        Quality part easy install clear instructions !!!!!!!!!MM

        Helpful (7)

      Questions & Answers (5 answers)

      5 Top Rated Questions

      Will this work with the phase 3 Roush Supercharger in 2014 Mustang 5.0?

      • This JMS FuelMAX Fuel Pump Voltage Booster V2 will work with the stock fuel pump any many aftermarket applications where more fuel is required. As long as the booster is adjusted correctly for your application and tune, it would indeed work.

      Helpful (2)

      If I have a full bolt on 14 mustang gt on e85 do I need this or only if I boost my car?

      Will this cause the fuel pump to wear out faster?

      • This part will not cause the fuel pump to wear out faster.

      Helpful (0)

      I have a 2014 gt (built engine) with 42lb injectors on a 175 this recommended with upgrading the fuel lines as well?

      • The need for the JMS PowerMAX V2 FuelMAX Fuel Pump Voltage Booster will be dependent on your individual build. Please contact our Customer Service department, or your tuner to determine if this will be needed.

      Helpful (0)

      My 5.0 is not supercharged ,yet. Forced induction won't be for another year. Would I still have any benefit in performance gains if I purchase this unit as the car sit today or is it overkill . The car is a full bolt on car from the intake side to the exhaust end. CAI, boss intake manifold , kooks 1 7/8 LTH, kooks x mid pipe, magnaflow cat back.

      • If you Mustang does not require additional fuel, the JMS FuelMAX - Fuel Pump Voltage Booster V2 would not be necessary. If you happen to use an alternative fuel, such as ethanol and your fuel pump needs some help, this would do the trick. If you are using standard pump gas with those modifications, this boost would not be neccessary.

      Helpful (0)
      Post Your Question

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) 44 Amp PowerMAX V2 Voltage Booster
      • (1) Single Plug & Play Wiring Harness
      • (1) Pedal Harness
      • (1) Hobbs Switch Preset @ 5psi (user adjustable 3-7psi)
      • (1) Fitting 1/8npt Female to 3/16" Male Barb
      • (1) Vacuum Tee 3/16" x 3/16" x 3/16"
      • (1) Vacuum Tee 1/4" x 1/4" x 3/16"
      • (1) Vacuum Tee 3/8" x 3/8" x 3/16"
      • (1) One Foot of 5/32" vacuum hose
      • (1) 30amp mini-fuse and solder
      • (2) 10/12gauge Heat Shrink Butt Splices
      • (2) #8 stud 18/22 gauge wire Heat Shrink Ring Terminal
      • (1) 10 gauge Heat Shrink Ring Terminal
      • (6) Zip Ties
      • (6) Self drilling hex screws with mini screw-driver

      Tech Specs

      Will It Fit My Mustang

      • Boss 302 - 12, 13
      • GT - 11, 12, 13, 14
      • V6 - 11, 12, 13, 14

      Does Not Fit Shelby GT500 Models

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