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Whipple W140AX 2.3L Intercooled Supercharger Kit; Black (05-10 GT w/ Automatic Transmission)

Item 48504
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Market Price $7,599.99 You Save 3% ($250.00)
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      Product Information

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


      • 550 Horsepower, 542 Lb/Ft of Torque
      • 2.3L W140ax Whipple Twin Screw Supercharger
      • Black Finish
      • 11 PSI at Red-Line
      • Includes Air-To-Water Intercooler
      • Fits All 2005-2010 Automatic GT Mustangs


      Even More Power! The stock 4.6L Mustang GT came with an respectable 300 Horsepower and 320 lb/ft of Torque from the factory, but after installing a Whipple Supercharger you will be planting a ground pounding 550 Horsepower and 542 lb/ft of Torque to the pavement. That is 250 more horsepower over stock!

      50 State Legal. Unlike the competitors kits, the Whipple Intercooled Mustang Supercharger Kit is 50 state emissions legal.

      Application. This Whipple Supercharger System is designed for use on the 2005-2010 4.6L GT Mustangs with an Automatic Transmission. Choose your year from the drop down option above.

      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: 2005 2006 2007 2008 2009 2010 Details

      MPN# 48504-A





      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (2)

      Write a Review

      Ratings Summary

      5.0 out of 5 overall rating from 2 customers

      Installation Time: Weekend

      • January 16, 2019

        5 2007 GT - eusevios197 Installation Time: Full Day

        great power

        i have a s197 and gives me great power and fast take off love the was it sits

        Helpful (5)
      • May 14, 2016

        5 2007 GT - MustangMan Installation Time: Weekend

        Super Good

        This is A great Instant Power Adder For Your S197 Mustang

        Helpful (20)

      Questions & Answers (22 answers)

      5 Top Rated Questions

      Will I need more than the provided kit in order for my 06 GT to run effectively? I really want my 06 GT to be a lot faster than it is. I was told by a dealer at Ford that if I were to add a super charger to my mustang that I will "blow out" the engine and tail end of my car. He stated that it wasn't "designed" to handle that much torque and horse power. I don't totally believe that but that is why I asked if I would need more than the kit American Muscle provides in order for my GT to run effectively and of course fast! I understand that I MAY need to add bigger brakes and a cool air intake, but I just need to know if there are any other NECESSARY requirements.

      • on our cars our rods are powder coated they aren't strong internals at all. so our car is rated to handle no more than 450 rwhp in the motor and on the auto tranny. what happens if you exceed this you might get away with it for a little bit depending on your driving habits, but what happens a lot is that you will end up throwing number 7 out your motor. from all the research i have done that is the most common. if you want your car to be a lot faster i would recommend 4.10 gears, a 3000 stall, one piece drive shaft, full bolt ons, cams, and I'm running a 75 shot and am really happy with it. but get a really good tune i am running bama tunes and haven't had any problems but a dyno tune is the way to go especially with nitrous but if you still want a power-adder the only way to make our cars have any serious power is to get a better block and forge the internals, upgrade the tranny level 10 and tci are most popular, you will need a one piece drive shaft, you can get away with the rear end but if you want to make 600 plus at the wheels i would recommend a 9" rear but it depends on how you drive and how hard your car will hook

      Helpful (9) Show 1 more answer

      Whipple Intercooled Supercharger Kit - Polished (05-10 GT Auto) do I need to make any changes to my auotmatic transmission/drivetrain before installing this supercharger on my 05 stang?

      • depends on how mush boost you push but you should be ok a trans cooler would help , and when you have a tune done have them reset shift firmness and shift points, have fun and make sure you buckle you

      Helpful (6) Show 2 more answers

      I'm looking to get a 05 or a 08 Mustang Gt and I was just wondering with this SC can I just throw it on and go or would I have to upgrade my gears and block and etc.?

      • The Whipple W140AX 2.3L Intercooled Supercharger Kit will not require more upgraded parts depending on how you will be using the car. If this is going to be a drag car, it is a great item is upgrade the rear gears and swap to forged internals.

      Helpful (4)

      Does this kit have an E.O. # for California Residents?? Did not see one posted in Description like many other 50 States Legal parts.

      • This will not be CARB legal.

      Helpful (1)

      Does this kit come with a handheld tuner to tune the car?

      10 More Questions
      Just wondering if this kit comes with a handheld tuner? 0 answer
      SAYS 50 STATE LEGAL. but not legal in CA? 0 answer
      Is this a good install if I wanna drive loge distance? 0 answer
      Can this be used with any other aftermarket camshaft? Or mods to get to Atleast 520 rwhp??? 1 answer
      Would this work with my setup I have hot rod cams and other mods would it come with a custom tune for all my mods? 1 answer
      Will this work with my stock automatic transmission ? 1 answer
      Can other add-ons performance parts be used with this supercharger 1 answer
      Is there a in-polished version of this available? I would prefer the black to the polished. 1 answer
      If I make major adjustments for this kit and what to change my headers, should I go long or short? And do you have long tubes that would fit cats without fabrication? 1 answer
      Is this a complete kit if not what else would I need? 1 answer

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • W140ax (2.3L) Whipple twin-screw supercharger
      • 5-Inch thick aluminum intercooler for superior cooling
      • Oversized aluminum heat exchanger for increased cooling capacity
      • Aluminum Intercooler Reservoir
      • Ford GT 34lb/hr fuel injectors
      • 0 degree Ford Racing spark plugs
      • Self contained oil system, no tapping oil pan
      • Industry leading 95mm mass air flow meter
      • Cold air intake system with 9-Inch S&B “True Flow” filter
      • Whipple PCM calibration

      Tech Specs

      • 2.3L Twin Screw W140ax Whipple Supercharger Assembly
      • Black Finish
      • Boost (PSIG): 11
      • Dual Fuel Pump, fuel pump driver, and harness
      • True cold air intake system with 9” S&B “True Flow” filter
      • 95mm mass air flow meter
      • Oversized Fluidyne heat exchanger
      • Air-to-Water Inter Cooler
      • Professional Installation Recommended

      Will It Fit My Mustang

      • GT - 05, 06, 07, 08, 09, 10

      Fits automatic transmission GT's only, will not fit manual

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