• Shipping Weight: 0.8lbs
  • Units in Stock: 9


The "Original E.F.I.E." George Wiseman from Eagle Research coined the name " Electronic Fuel Injection Enhancer" EFIE circuit that is easy to install, should take just one or 2 hours for an experienced mechanic or car stereo installer. Longer time, for the laymen. The EFIE allows you to customize and 'correct' the voltage signal coming from your oxygen sensor; so that your computer doesn't know there is extra oxygen in the exhaust. Comes in a U solder kit as well, for those who can solder. More installation and operating instructions are here.

The EFIE allows you to retain all your power and performance while taking advantage of increased mileage. No matter what fuel saver device or method you use on your fuel injected vehicle, you'll need the EFIE to unleash the full potential of the fuel saver. Works well with OBD I cars and trucks ( 1987 - 1995) and also on OBD II vehicles ( 1996 - 2014)

The EFIE alone can save 5% - 10% on your fuel bill, simply by 'leaning' your fuel mixture. We do not consider the EFIE to be a fuel saver on it's own. The EFIE is designed to be an ASSIST for fuel savers. We do not consider any technology to be a practical fuel saver unless it can save at least 25% on at least 75% of vehicles!

This version of the orginal EFIE has been working for 20 years! It replaces the 18/1 EFIE we used to sell. The DEFIE is no longer made and we can no longer get them.

We ship 5 days a week, only $6.10 for USPS Priority mail. 90% of the time we ship the next day after you order.

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This product was added to our catalog on Friday 12 February, 2016.

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