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Whipple W175AX 2.9L Supercharger Upgrade Kit (07-12 GT500)

Item 102470
AmericanMuscle no longer carries the Whipple W175AX 2.9L Supercharger Upgrade Kit (07-12 GT500). Please check out 2005 - 2009 Mustang Superchargers for an updated selection.
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Features & Details

  • 2.9L Twin Screw W175AX Whipple Supercharger
  • Boost Range 10 - 25 psi
  • Black Wrinkle Finish
  • Bolt-On Replacement
  • Clears Stock Factory Hood
  • CARB EO Number: D-231-35
  • Fits 2007 to 2012 Shelby GT500
Craving More Power? Is your factory Eaton Supercharged Shelby GT500 not making enough power for your needs? Then upgrade to a W175AX 2.9L Twin Screw Whipple Supercharger compressor for big power gains from your DOHC 4-valve 5.4L GT500 Mustang.

W175AX 2.9L Upgrade Kit. This Whipple W175AX 2.9L Twin Screw compressor is a direct bolt-on replacement that gives you the ability to run far higher boost levels than the factory 2.1L roots-type supercharger will allow, while dramatically lowering supercharger discharge temperatures and power consumption (hp).

10 - 25 psi. The Whipple 2.9L Supercharger will produce up to 10psi of boost with the factory supercharger pulley and can even handle a maximum 25psi of boost pressure with pulley and intake upgrades for unheralded power and performance.

50 State Legal. Unlike the competitors, this Ford Racing Supercharger Kit is 50 state emissions legal under CARB EO# D-231-35.

Required Upgrade. Installation of this Whipple Supercharger upgrade kit will require custom calibration of your vehicles computer (PCM) for operation (not included). AmericanMuscle recommends the use of a Handheld Tuner loaded with custom tunes.

Application. This Black Whipple 2.9L W175AX Supercharger Upgrade Kit is designed as a direct fit performance upgrade for the 2007 to 2012 Shelby GT500 Mustangs equipped with the Supercharged 5.4L DOHC V-8 engine.

Please Note: Whipple Supercharger Kits are built to order for our customers. Because of this there can be a 10 to 14 day lead time on orders.

Fitment: Details

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

Installation Info
Tech Specs
Will it fit my Mustang?

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      Questions & Answers (16)

      5 Top Rated Questions

      What does this kit include other than the head unit? Do i reuse any parts off my original supercharger or does this come with everything i need ie throttle body, cold air intake, ect?

      • The Whipple 2.9L Supercharger Upgrade Kit is a direct bolt on replacement for the stock super charger. You will reuse your stock parts.

      Helpful (2)

      Is this supercharger a gen 3 or gen 2? Thanks

      • This is the gen 3.

      Helpful (1)

      Would you recommend bigger fuel injectors? If so what size? I am running the mono blade throttle body and custom off road exhaust with the 3" pulley how much boost am I looking at running 92 octane.

      • It is a good idea to upgrade the fuel injectors when installing the Whipple Black Supercharger Upgrade Kit. If you are looking to make a lot of power, we recommend the Injector Dynamics EV14 High Impedance ID1000 Injectors - 96 lb (07-14 GT500), item # 100541, (http://www.americanmuscle.com/injector-dynamics-ev14-96lb-gt500.html). If you are going with something else, you will need a EV14 model injector for your car. The amount of boost you get all depends on other applications on the car.

      Helpful (1)

      What size pulley doe this come with for the supercharger snout? I am looking to buy this kit.

      • This will include a 3 inch pulley.

      Helpful (0)

      I intend to use this as a replacement for my Roush 2.3 blower. I assume that the unit Does come with the intake elbow as pictured, and can I reuse my CAI from the roush unit and throttle? Do I need to add a pully or does that come with what size is it? I am looking at getting 20lb of boost. I beleive this needs a 2.75" pully??? Thanks for your help! I hope to order this next month

      Post Your Question
      10 More Questions
      Does this kit come with any fueling upgrades? and if not would you recommend it? 1 answer
      On an otherwise stock motor will this pass California smog check? It says it has a CARB number but requires a custom tune. 1 answer
      I intend to use this as a replacement for my Roush 2.3 blower. I assume that Does the unit come with the intake elbow as pictured, and can I reuse my CAI from the roush unit and throttle? Do I need to add a pully or does that come with what size is it? I am looking at getting 20lb of boost. I beleive this needs a 3" pully??? Thanks for your help! I hope to order this next month. 1 answer
      horsepower increase 1 answer
      will stock internals other than fuel injectors on a 2009 gt500 be safe with this kit ? 1 answer
      Can a stock 4.6 everything handle this kind of power? What kinda power can the transmission and engine handle 1 answer
      If I put this blower on my 12 GT500, will I have to upgrade anything else besides the tune ?? Or can I just keep the blower on 1 answer
      Why can I not find this supercharger in the polished finish instead of black. I have been wanting to buy one but really want the polished look. 1 answer
      Do i need to order any additional parts for a complete install kit other than the handheld tuner? 1 answer
      Could you run the 2.9L Whipple with a 2.6 inch pulley upgrade? Might that push the over the max 25 psi? 1 answer

        Customer Reviews (4) Write a Review

        Overall Rating 4.5

        out of 5 stars

        Installation Time:Afternoon

        • Performance Gain 5 5
        • Fit 4 4



        • 5/5

          May 12, 2019

          Whipple 2.9 Roush replacement

          Looks great. Went from a Roush 2.3 to whipple 2.9. Should be good for a lot more HP! Can't wait to install it during my next vacation.

          jpbaily1

          Year: 2011 Submodel: GT500

          Helpful (1)

        • 5/5

          Installation Time: Afternoon

          December 24, 2018

          POWER

          Great upgrade for the old stock eaton 2.3. somewhat quieter and smoother with quite a bit more power.

          waveblastr

          Year: 2011 Submodel: GT500

          Helpful (7)

        • 5/5

          Installation Time: Afternoon

          May 27, 2016

          Extremely satisfied!

          The blower went on a 2011 gt500 with only a CAI. With a tune it has 639hp 595tq at 17psi. The blower has much more power to give but with only 91 octane that's the best I got. Still I'm satisfied with the power and with the product maybe later I will install a meth kit and I'll be around 22psi. Once again thanks to American muscle and whipple.

          Vic

          Year: 2011 Submodel: GT500

          Helpful (30)

        • 3/5

          Installation Time: Afternoon

          May 13, 2016

          Nice

          Gives very good power and such a nice set up Had friends help with my Gt500 to install this

          Steezydbricks

          Year: 2008 Submodel: GT500

          Helpful (22)

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