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RR Racing Lexus IS-F ECU Upgrade OBD Tune

For Sale

Engine - Power Adders

Jul 22, 2025, 04:55 PM | Replies: 0 | Views: 503
  • Engine - Power Adders - RR Racing Lexus IS-F ECU Upgrade OBD Tune - Used - -1 to 2026  All Models - Clearwater, FL 33765, United States
    Sold
  • Engine - Power Adders - RR Racing Lexus IS-F ECU Upgrade OBD Tune - Used - -1 to 2026  All Models - Clearwater, FL 33765, United States
    Sold
  • Engine - Power Adders - RR Racing Lexus IS-F ECU Upgrade OBD Tune - Used - -1 to 2026  All Models - Clearwater, FL 33765, United States
    Sold
  • Engine - Power Adders - RR Racing Lexus IS-F ECU Upgrade OBD Tune - Used - -1 to 2026  All Models - Clearwater, FL 33765, United States
    Sold
  • Engine - Power Adders - RR Racing Lexus IS-F ECU Upgrade OBD Tune - Used - -1 to 2026  All Models - Clearwater, FL 33765, United States
    Sold
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Join Date: Feb 2004
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  • Price
    $550
  • Location Clearwater, FL, 33765, USA
  • Condition Used
Description:

Purchased this tuner several years ago, never used it and the ISF is long gone.  I plugged in to my PC for a function check and updated it via the MyGenius software, screenshot of this is attached.  Includes tuner, box, cable, and instructions.

$550 shipped via UPS Ground, signature required, shipping to the USA only.

Payment via Paypal, Venmo, or Zelle.


---

I did reach out to RR Racing about this, email convo is below:

RR Racing,
A while back I purchased a used tuner for a 2012 Lexus ISF that I owned, but never did get around to reaching out to you guys about activating it.
I've sold the ISF and would like to sell the tuner as well, but I wanted to reach out to you guys and see what I need to do for the new owner to use it?
I never did use it on my car.
Serial # from the back is 19XXXXXX
DIM Sport "MyGenius" ODBII programming device.
Please let me know.

[RESPONSE from RR Racing]:Hello, 

If you purchased a used MyGenius and did nothing with it, just sell it to the next guy. You don't need to do anything. 

-Justin

==================

Description

RR Racing is proud to make history by being able to offer an OBD device tune for Lexus IS-F engine control unit (ECU) based on our famous ECU upgrade product!

Please note that we now offer the ECU tune in combination with our Tuned Intake and as part of the Performance Upgrade product

The Lexus IS-F ECU is a very complex and sophisticated engine management system. RR Racing has been developing this upgrade tune for many months, intimately understanding IS-F ECU's parameters and structures, testing various changes to optimize power and torque effectively while retaining stock fuel efficiency, knock control sensitivity, and other built in safety features. During the development and testing period, we have logged many track hours and over 2,000 miles of road testing and road-dyno logging with many more hours spent on a sophisticated Dynojet dyno at a top-notch climate-controlled facility. Then we tested various OBD units, and only when we were convinced that the device is reliable, we released it as a product.

So, as you can see this was not a weekend project for us, where we slapped on IS-F on the dyno, played around a bit for a day or weekend, and and now we are selling a tune. We had done most of our development on the road, under real world conditions, doing hundreds of runs, datalogs, and hundreds of miles of testing between re-maps in order to determine how the ECU reacts to changes and adjust learning parameters. We have developed a full understanding of the following ECU functions/parameters, including but not limited to:
  • Direct Injection / Port Injection fuel mapping
  • Ignition control (ISF has base ignition maps, cam timing dependent ignition maps, knock correction maps)
  • Intake and Exhaust variable cam maps
  • Torque to throttle mapping (allows us to enhance throttle response)
  • Rev limit increases to 7200 (for avoiding hitting the rev limiter)
  • Raise the speed limiter
Our on road impressions are that the IS-F pulls much more smoothly and linearly, with excellent midrange and top-end improvement. This was evidenced in our ignition curve datalogs shown below where a combination of ignition and cam timing adjustments resulted in a much more linear and aggressive ignition curve, free of any detonation or large ignition corrections:

Please refer to our image gallery for dyno results comparisons. The chart below summarizes some of the gains for typical starting modifications on 93 (US) fuel.

Last edited by Beachtyme; Jul 22, 2025 at 04:57 PM. Reply




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