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The Toyota 20R and 22R 4 cylinders are some of the most popular engines ever produced. The new D.U.I. (Davis Unified Ignition) is the ultimate ignition for this application. Produced from 74-89, trucks with this engine need to be upgraded with today's technology, specifically the D.U.I. The D.U.I. is a one-wire, one piece distributor. No more messy wiring or points!

The Toyota D.U.I. Street/Strip version delivers power up to 7000 RPMs.

Due to the longer duration spark which the D.U.I. produces, you will be able to open up the plug gaps to a whopping .055". This burns the fuel more completely, leading to more power. The Performance Distributors Dyna Module is designed with more dwell time producing a hotter spark. No ballast resistor is used. Stock Toyota systems, and many aftermarket systems, require a ballast resistor which reduces the voltage in the ignition system. The D.U.I. allows FULL voltage into the ignition system, giving you a better spark and more power.

Because each D.U.I. is calibrated on a distributor machine with a very accurate advance curve, you should be able to increase your initial base timing from the factory setting of 0 degrees to 8 degrees. That will set you back in your seat fast!

The Toyota D.U.I. is a real work of craftsmanship. Although it is uniquely designed, replacement parts are easy to find. GM HEI replacement parts will fit right on the DUI and these parts can be found at your local auto parts store. The unit is polished and lubed as it is assembled. Built for durability, the D.U.I. has an upper and lower bushing, unlike stock Toyota distributors with only one bushing. An optional tach hookup is included with the D.U.I.

• Fits 20R and 22R Engines!
• One Piece Distributor!
• Instant Throttle Response!
• More Voltage, No Resistor!
• Brass Terminal Cap and Rotor Included!

Part #80420 Toyota 20R & 22R (Street/Strip Version) $345.00

*The DUI is NOT compatible with the 22RE engine.

Please Note: Because each PERFORMANCE DISTRIBUTOR is custom calibrated for YOUR Toyota, the ship time is currently 1 Week, plus UPS delivery time . (And well worth the wait!)