Visconti Tuning A90 / A91 Supra Sequential Port Injection Kit

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Visconti Tuning


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Already have a visconti flex fuel kit?

 What’s included:

  • MOTIV RE|FLEX with Visconti Firmware
  • Visconti Plug & Play Sequential Injector Harness
  • Visconti Plug & Play Controller Harness
  • Visconti Plug & Play Engine Integration Harness
  • Visconti Flex Fuel Port Injection Fitting
  • Fuel Pressure Sensor (150PSI)

What advantages does this kit have over other solutions:

  • 100% Plug and Play Wiring Harness
  • 100% Controlled over CANBUS
  • Allows for true Flex Fuel
  • Installs in 4HRS
  • Easy to uninstall, no wires to repair or cut.


Visconti Tuning is proud to announce several new advancements for the B58 Toyota Supra platform. The latest release is our Plug & Play Sequential port injection kit that is completely controlled over CANBUS. This kit also has the ability to drive more than one PWM output for a secondary fuel pump, externally gated boost control, methanol or nitrous.

This kit will enable the ECM to run true flex fuel even when port injection is added. Other popular systems don’t have the ability to adjust fuel volume proportional to the ethanol content. This eliminates the need to change the port injection tune when running different ethanol blends.

By driving the port injection through the factory ECM, the system has the ability to properly control fuel volume during decel to prevent over fueling.

With the fuel pressure monitoring the ECM will be able to compensate injector pulse width for when your low pressure fuel system starts to run out of pump. Your tuner can also setup fail safes with-in EcuTek RaceRom to limit power output when these fuel system limits appear.

We will provide an 'EcuTek Diff File' which will contain all the settings your tuner will need to get RaceRom configured for the controller. This can easily be done to existing tunes that already have RaceRom. This still requires custom tuning but will provide a great starting point for this advanced CANBUS integration.

Additional Information:

  • This port injection wiring kit requires the Visconti Flex Fuel Kit harness, it will not work with other kits that are similar.
  • This is designed to replace the existing Zeitronix CANBUS controller found in the Visconti Flex Fuel Kit. If you have a ethanol display and would like to keep that please email and will make that happen.
  • If you already have a Flex Fuel enabled tune you will not be able to switch out the CANBUS hardware without getting a updated tune file from your tuner.

Returns Policy

--PLEASE NOTE: MOST ORDERS ARE SUBJECT TO RESTOCK OR CANCELATION FEE. PLEASE CALL OUR OFFICE FOR DETAILS AND EXCEPTIONS-- You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.


We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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