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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


SMT8W - SMT8 Wireless

Introducing the Perfect Power - SMT8W - SMT8 WIRELESS.

Now you can install the SMT8W unit in a safe, difficult to reach place and still tune it from a distance, with NO COMMUNICATION WIRES! This is a remarkable breakthrough in the aftermarket performance industry and it is what all our customers have been waiting for.

The SMT8W piggy-back system has the latest 16 bit DSP processors, and is full of the fantastic features as the current SMT8. The SMT8W is ideal for the professional tuner and the engine builder.


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.

  • 2 Maps to influence Analog Signals
  • 1 Map to influence up to THREE Ignition Signals
  • 2 Extra Injector Maps to drive TWO Injectors
  • 1 Set point Control with up to THREE Outputs (Relays)
  • 1 Frequency Modification Map
  • 1 AFR (Lambda) Modification Map Wide/Narrow
  • 1 Boost Control Screen
  • Calibration of all inputs:
  • Engine Temperature, Air Temperature, AMP (MAP) Sensor, Throttle Position, RPM, Ignition cut, Ignition retard and ETC (Electronic Throttle Control).
  • Engine Protection via: Ignition cut, Ignition retard and ETC control.

The SMT8W Piggy-Back also has many other existing features!


The SMT8W is packaged as a Kit, which contains all the items you will need including the WirX POD. The Kit includes:

  • 1 x SMT8W Standard Piggy-Back Controller
  • 1 x SMT8W Tuning (Wiring) Harness
  • 1 x WirX POD
  • 1 x CD with LetRipp Software and Manuals

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