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Whipple Intercooled Supercharger Kit - Polished (05-10 GT Auto)

Market Price $7,599.99 You Save 3% ($250.00)
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  • Item 48504
  • MPN# 48504-A

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Features & Details

  • 550 Horsepower, 542 Lb/Ft of Torque
  • 2.3L W140ax Whipple Twin Screw Supercharger
  • Bright Polished Finish
  • 11 PSI at Red-Line
  • Includes Air-To-Water Intercooler
  • Fits 2005 to 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 Polished 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 Polished Whipple Supercharger System is designed for use on the 2005 to 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

Installation Info
Tech Specs
  • 2.3L Twin Screw W140ax Whipple Supercharger Assembly
  • Polished 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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9 Questions / 9 Answers

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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


Show 2 more answers Helpful (6)

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


Show 1 more answer Helpful (4)

I have a 07 GT, I'm considering getting forged internals before getting this supercharger but I wanna be sure I need them. Could I get away with running this on my stock block? And does this kit include fuel injectors? Thanks in advance


  • The Whipple Intercooled Supercharger Kit is designed to work within the limitations of your stock block, however if you have higher mileage and are planning on a rebuild, then going with forged internals will give you much more room to grow in the future with the addition of more mods or more boost.

    Rob D

Helpful (0)

My 07 is completely stock at the moment, is there anything else I need with this product? Cold air, throttle body and so on? I don't plan on drag racing just want a faster weekend toy may get in it but nothing crazy.


  • To install the Whipple Intercooled Supercharger Kit you will need a new fuel system. This would include fuel rails and spark plugs. When you have this installed and tuned they should go over the right size you need for your plugs.

    AM MikeW

Helpful (0)

Is there a pulley or other setup available to limit the amount of boost from this blower? I would prefer to run closer to 5-7 lbs of boost in order to save the internals of my 4.6.


  • Whipple Superchargers offers pulley options from 6-18psi of boost. Unfortunately, we do not currently carry the pulley required for a 5-7psi application, however, Whipple does have them available.


Helpful (0)

Is this California legal?


  • Hi, This Whipple Intercooled Supercharger Kit is 50 state emissions legal.

    Chris J

Helpful (0)

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Customer Reviews (1) Write a Review

Overall Rating 5.0

out of 5 stars

Installation Time:Weekend

  • Performance Gain 5 5
  • Fit 4 4

  • 5/5

    Installation Time: Weekend

    May 14, 2016

    Super Good

    This is A great Instant Power Adder For Your S197 Mustang


    Year: 2007 Submodel: GT

    Helpful (1)

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