5th Gen Toyota 4Runner OTT Tuned ECU (2010–2024) | Performance ECU Upgrade

5th Generation Toyota 4Runner OTT Tuned ECU (2010–2024)

Unlock the true potential of your 5th Gen Toyota 4Runner 4.0L V6 (1GR-FE) with a professionally calibrated OTT ECU by Big Dawgs Toyota Tuning.

From the factory, 4Runners are known for throttle delay and conservative transmission mapping. This tune refines throttle response, improves shift logic, and enhances overall drivability for both daily driving and off-road use.

Designed specifically for 2010–2024 Toyota 4Runner models, this is a 5th Generation 4Runner Tuned ECU that will transform how your vehicle feels behind the wheel.

This product has been updated with the latest Toyota TSB and tuned with the newest OTT calibration.

ECUs are year & drivetrain specific. They not interchangeable. Please double-check that you select the correct model year for your vehicle before ordering.

You’ll remove your factory ECU and install the tuned unit using the included step-by-step instructions. No additional tuning or programming required.

Please note: a $350 core charge is applied at checkout and will be fully refunded once we receive your original (stock) ECU & verify its working condition.  

Once purchased, you will receive an email requesting details about your truck. It is pertinent you respond with the information requested. 

Warning! Installation of this ECU incorrectly may result in ECU/TCU failure. Please contact Big Dawgs Toyota Tuning if you have any questions.