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Perfect Power Piggybacks and Stand-ALone ECUs

Please be patient, certain parts are made per order and require time to manufacturer. All parts will be immediately shipped as they become available. All prices do not include any core charges, shipping, taxes or installation charges. All orders are considered 'Special Order' and are paid in full at time of order via wire transfer or as agreed. All pricing must be verified the day of quote, at time of order, at time of shipping and will be adjusted based on the value of the Dollar Internationally. Any deficiency is immediately due upon billing and before delivery.

Perfect Power Products

The Perfect Solution to a Powerful Engine Management System


SMT8L-W SMT8 Lite Wireless

Introducing the Perfect Power - SMT8L-W

(SMT8 LITE WIRELESS). This is the baby brother of the SMT8W piggy-back product. Just like the SMT8W, you can install the SMT8L-W unit in a safe, difficult to reach place and still be able to tune it from a distance, with NO COMMUNICATION WIRES! This is a must-have product in the aftermarket automotive performance industry.

The SMT8L-W piggy-back system also has the latest 16 bit DSP processors, and is full of the fantastic features as the current SMT8-L.


All piggy-back systems rely on the existing ECU to provide the fuel and ignition to an electronically fuel-injected engine.  Therefore, they are also bound by the limitations of the existing ECU.

  • Two Maps to influence Analog Signals
  • One Map to influence 1 Ignition Signal
  • Extra Injector Drive with Full Mapping
  • Boost Control
  • Frequency/PWM Input/Output with Full Mapping
  • Biopolar Ignition Output
  • ETC Mapping
  • Engine Safety Control
  • AFR (Lambda) Mapping
  • Calibration of All Inputs

The SMT8-LW Piggy-Back also has many other existing features!

The SMT8-LW is packaged as a Kit, which contains all the items you will need including the WirX POD.

The Kit includes:

  • 1 x SMT8-LW Standard Piggy-Back Controller
  • 1 x SMT8-LW Tuning (Wiring) Harness
  • 1 x WirX POD
  • 1 x CD with LetRipp Software and Manuals

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