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Stage 3Rx Performance Package

Stage 3 and 3R have been designed for the 951 owner that requires the utmost performance out of the 951. Stage 3 delivers plenty of power where you need it most. This is our best selling kit, simply because of its phenomenal performance.

After years of successful experience with the Stage 3 and 3R, we found a way to improve a already great product. The Stage 3Rx supersedes the Stage 3 and 3R performance packages.

The Stage 3Rx uses a new Billet Compressor Wheel.
Stage 3Rx is capable of delivering serious horsepower and torque. The Boost characteristics are superb, 15psi is made around 3200-3400rpm. Peak numbers are not what we are after. We provide you with the nicest power curve for your 951. Stage 3Rx kit comes with our latest software to offer you great drivability and performance. At 15psi boost, the stage 3Rx is rated at 310-330rwhp (rear wheel horsepower). For every 1 psi increase in boost, we expect an increase of 12-15rwhp. The S3Rx can support over 450rwhp.

We now offer the Stage 3Rx, which is capable of supporting even more horsepower than the Stage 3 and 3R. The Stage 3Rx is similar to the Stage 3 and 3R, however it was designed to offer a more linear torque curve and to support a higher horsepower up top. The Stage 3Rx flattens the torque line and shifts the power band a bit to the left of the curve. The Stage 3Rx still offer great spoolup characteristics. The Stage 3Rx is for those wanting the most out of their 2.5L engine and for those using their car on the race track. 

Each kit comes complete with a Turbo, MAF kit, MAP sensor, the latest V-MAF+ software and a Piggyback.
All wiring and instructions are included.

Large injectors, 80lb or larger, and a 3bar Fuel Pressure Regulator must be used with the Stage 3Rx


  • Billet Comp Wheel
  • Water and oil cooled
  • Direct bolt-on
  • 3" Inlet, 2” Outlet
  • Water Pipe Adapter and Exhaust Studs included.


  • MAF sensor
  • Chip/Board with the latest boost based engine management V-MAF+ software
  • Software pre-configured to support: 91 - 93 octane, race gas and E85
  • MAP sensor
  • Wiring harness
  • 3" adapter
  • 3" hoses and clamps
  • Air Filter

PiggyBack Kit

  • PiggyBack Computer
  • Wiring Harness
  • Bridging Plug
  • Com Cable
  • WIN software and manuals
  • Configuration data

Required Items
sold separately

Optional Items
sold separately

Vitesse Turbo

Stage III Dyno 15psi  DYNOJET

Stage III Dyno 17psi  DYNOJET

Stage III Dyno 24psi  DYNOJET


Click to Enlarge Dyno

Vitesse Mass Air Flow MAF

Vitesse Piggy Back Fuel Controller

Stage 3Rx: Back Order

Vitesse Racing 2.5 liter Engine