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

Market Price $7,599.99 You Save 3% ($250.00)
Our Price


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  • Item 48503
  • MPN# 48503-A

Select Fitment

05-06 GT 07 GT 08 GT 09 GT 10 GT
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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 Manual 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!

Complete Kit. This Whipple Industries Mustang Supercharger System comes with all the required parts needed to upgrade your Steed into a fire breathing Beast. The kit features a Twin Screw Supercharger, 0-Degree Ford Racing Spark Plugs, 5" Aluminum Air-to-Water Intercooler, CAI with 9" S&B True-flow Filter, 95mm Mass Air Flow Meter and Fluidyne heat exchanger.

Whipple Calibration. This Whipple Twin Screw Supercharger requires that the vehicle PCM be sent to Whipple for the necessary reprogramming.

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 a manual 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

What's in the Box
  • Twin Screw Supercharger
  • 0-Degree Ford Racing Spark Plugs
  • 5" Aluminum Air-to-Water Intercooler
  • Cold Air Intake with 9" S&B True-flow Filter
  • 95mm Mass Air Flow Meter
  • Fluidyne heat exchanger
Installation Info
Tech Specs
  • 2.3L Twin Screw W140ax Whipple Supercharger Assembly
  • Polished Finish
  • Boost (PSIG): 11
  • Ford GT 34lb/hr fuel injectors
  • 0 degree Ford Racing spark plugs
  • 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?
  • Bullitt - 08, 09
  • GT - 05, 06, 07, 08, 09, 10

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

Customer Photos (5) Submit Your Photo

View All 5 Photos

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12 Questions / 7 Answers

Ask a Question

Can I still use my tower brace? I have a 2008 Bullitt, will this supercharger fit under the stock tower brace? Can I use the cold air intake that came with the Bullitt or do I need to change it with the one in the kit?


Helpful (1)
  • yes you can, STEEDA has them on their page.


Show 1 more answer

Do you need to upgrade the lower end of the motor to use this Whipple supercharger


Helpful (0)
  • You will not need to upgrade anything on the lower end as this supercharger is a complete kit.


Does this kit use the stock airbox or have a conical filter? The customer pics show stock airbox but then the mfr info calls out the conical filter.


Helpful (0)
  • You can use either a stock airbox or a cold air intake with 9" S&B true flow filter.


Will this fit with Roush Underdrive Pullies


Helpful (0)
  • Roush Underdrive Pulley Kit "Not compatible with ROUSHcharged Mustangs" Probably not compatible with Whipple Supercharges Kit as well.


why is this just for manual? Is this to much power for the stock automatic? What about a built automatic? Right now I'm bone stock (everything) w/29000 miles on it. thanks


Helpful (0)
  • Tuning auto-trans shifting points to handle this particular Supercharger's horse power and torque is extremely difficult so it's not recommended.


i have upgraded my clutch to the exedy mach 400 2 stage clutch will this be enough to hold this beast back


Helpful (0)
  • No, the Exedy Mach 400 Stage 2 Clutch (05-10 GT) (Item #62517) is maxed out at 510 hp at the flywheel. The Whipple Intercooled Supercharger Kit - Polished (05-10 GT Manual) is rated at 550 hp.


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Customer Reviews (1) Write a Review

Overall Rating 5.0

out of 5 stars

Installation Time:Shop Install

Installation Cost:$1000+

  • Performance Gain 5 5
  • Fit 5 5

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $1000+

    August 22, 2013

    Incredible S/C kit

    This is an amazing mod. HUGE horsepower gains will have you well over 450 at the rear wheels. The kit is very complete and high quality. All went together very well. AmericanMuscle notes (even after I brought it to their attention) that the kit comes with a flash programmer, which is incorrect. After several calls to AM and Ford Racing I ended up having to send my PCM to Whipple. No big deal, but it'd be nice if AM would list it correctly so you know what you're getting (especially since this issue has been brought to their attention...). In any case, this thing sounds GREAT, very loud whine. It feels great and pulls like crazy. It looks great and everything fit my GT as it was supposed to. Highly recommended


    Year: 2005 Submodel: GT Coon Rapids, MN

    Helpful (3)

    • Response from AmericanMuscle

      We are in the process of updating that information on our product page. Thank you for sharing your feedback on the Whipple SC and I'm glad you're enjoying your purchase!

      Lisa , Customer Care

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