2005-2006 W245AX (4.0L) Ford GT SuperCharger System

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If your craving more power from your GT Supercar, Whipple has the answer. Get the industries largest, most efficient and latest designed twin-screw supercharger available today. Whipple first brough you the 3.4 Liter W210ax, setting a trend for the ever increasing thirst for more power. After the massive success of the 3.4L, Whipple now offers the W245ax HPR (High Pressure Ratio) which is a whopping 4.0 Liter supercharger! Nearly twice the size of the stock SC and optimizied for the higher boost levels the Ford GT motor craves.

The new Whipple system can produce incredible power levels with stock 5.4L GT engines as well as highly modified engines. The revolutionary W245ax HPR compressor has the ability to run nearly 30lbs of boost (engine modifications required) for unheralded performance. This direct bolt-on replacement system gives you the ability to run far higher boost levels than the factory 2.3 liter screw-type supercharger while lowering supercharger air temperatures and power consumption (hp). This bolt-on system comes as a “tuner” system which gives tuners the ability to run various boost levels and tunes. 

Want to run a different boost level? In a matter of minutes, just loosen the 4 bolts, release tension from belt and the SC pulley can be replaced. No need to remove the supercharger for every pulley change as you must with the factory SC. Each kit includes SC pulley of your choice, an adjustable idler pulley for extra belt wrap on the sc pulley and extra belt adjustment as well as all the necessary hardware for a very easy bolt-on installation. Whipple also offers a custom-tuned SCT flash tool and Diablo MAFia for direct bolt-on performance. 

The Whipple GT kit not only offers a better supercharger, but the potential to have one of the fastest, most powerful street machines on the road today. Each system comes with a high shine polished finish while Whipple offers many custom colors.


  • Over 100rwhp gain with 15psi and custom tune.
  • Over 200rwhp gain with 19psi, custom tune, Ford Racing headers and cat-back exhaust.
  • Over 40hp gain at stock boost levels due to lower parasitic losses.
  • Over 40deg F cooler air at 15psi allows for more spark advance and more power.
  • Direct bolt on replacement.
  • Lower noise level.
  • More power, cooler charge air temp, less power consumption/parasitic loss than stock Lysholm 2.3 liter.
  • 4.0 liter vs. 2.3 liter compressor for more power potential.
  • Up to 95% efficiency.
  • Boost range 15 - 30 psi with SC pulley changes.
  • 4 bolts to remove SC pulley, no need to pull SC off for pulley.
  • Included adjustable idler pulley for extra belt adjustment.
  • Internally lubricated.
  • Award winning fit and finish.

Supercharger Finish

  • Mini-Textured Black (+$270)
  • Gloss Black (+$270)
  • Silver Dust (similar to factory color) **Drive, Inlet, Discharge, Polished (+$405)
  • Ford Textured Blue **Drive, Inlet, Discharge Ano Black (+$405)

Air Inlet Option

  • Whipple Carbon Fibre Inlet Tube (does not require air support) (+$740)
  • Air Inlet Supprt(+$160)

Throttle Body

  • Accufab Mono Blade Throttle Body (+$900)

Whipple Custom Calibrations

  • SCT X4 with Whipple Calibration (+$940)

Diablo MAFia

  • Diablo MAFia (+$255)

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