Getting you back on the water. Fast.


a complete EFI kit for the 71 series superchargers


The Rootz Advantage

  • The only true bolt on fuel injection kit for your roots style blower
  • Offers infinite tunability
  • Closed loop capabilities
  • User friendly tuning
  • 100% Made in USA
  • We use all OEM sensors that can be found at any local auto parts store
  • Superior idle quality
  • Protects your investment with complete engine monitoring of all vital functions
  • oil & fuel pressure
  • water temperature
  • intake temperature
  • engine knock
  • boost pressures
  • ignition timing
  • air/ fuel ratio

Fits the following superchargers:

  • The Blower Shop 250
  • 6-71
  • 8-71
  • 10-71
  • 12-71
  • 14-71
  • Whipple 5.0 & 8.0 liter

*More kits coming soon


The Rootz Kit

  • Fast XFI 2.0 ECU "red" (for automotive applications) 
  • Fast XFI 2.0 ECU "blue" (for marine applications) Fully sealed and potted components to withstand the harsh marine environments.
  • Billet dual sync distributor
  • Siemens Deka fuel injectors (sized to your application)
  • Performance fuel pressure regulator and filter
  • All required sensors included
  • Wiring harness
  • Two 1200 CFM throttle bodies complete with throttle position sensor and idle air control valves
  • Throttle linkage
  • Stainless hardware and gaskets
  • Installation Instructions

  • Lifetime technical assistance is just a click or a call away

*Download the full installation instructions

The Injection Plate

  • Completely CNC machined from billet aluminum
  • Stealth design conceals all fuel injectors and wiring
  • 1 piece plate, no need for a carb adapter
  • Worried about hood/ hatch clearance? Our kit is 1 1/4” lower than carburetors
  • Fits a wide range of injector sizes to accommodate any engine combination from mild to wild
  • Incorporates 1200 cfm throttle bodies for maximum air flow 

*All plates are patent pending


Benefits of EFI

  • Better fuel economy (up to 40% more efficient)

  • Less maintenance (fewer oil changes)

  • Easier start ups

  • Altitude compensation

  • Superior throttle response and power

  • Reduced emissions (no more black transoms)

  • Can eliminate blower surge

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Authorized Dealers