No, Toyota never officially marketed the Mark X as “built for drivers who appreciate the finer things in life—like a perfectly executed drift.” But enthusiasts know that’s exactly the spirit behind it. With rear-wheel drive balance, refined styling, and smooth six-cylinder engines, the Mark X has always had more potential than Toyota chose to release. At Auto Upgrades, we unlock that hidden capability. With professional ECU tuning, the Mark X transforms—sharper throttle response, stronger torque, and power delivered the way it should have been from the start.

Toyota Mark X Performance Tuning Auckland

Key Features:

Power: More horsepower across the range for genuine performance gains.
Torque: Extra torque for stronger midrange pull and harder acceleration.
Response: Sharper throttle and quicker delivery for a more connected drive.
Tailored Tuning: Calibrations refined to suit both spirited drivers and everyday use.
Reliability: Safe, tested ECU tuning methods ensure long-term durability.

Performance Gains:

2009–2019 3.5L: +25HP, +30Nm
2004–2019 3.0L: +20HP, +30Nm
2004–2009 2.5L: +15HP, +20Nm

How It Works:

Morning: Drop off your Mark X and outline your goals.
Tuning: We recalibrate the ECU with OEM-level precision, optimising fuelling, ignition, torque control, and throttle response.
Afternoon: Collect your Mark X—faster, sharper, and more alive than ever before.

Engineered Results

The Toyota Mark X blends Japanese refinement with genuine driver appeal. Our tuning builds on that foundation, delivering stronger acceleration, harder midrange torque, and sharper throttle response—all while maintaining Toyota’s trademark reliability. Whether you drive the 2.5L, 3.0L, or the powerful 3.5L, Auto Upgrades ensures your Mark X delivers the performance edge it was always capable of.

Auto Upgrades makes the Mark X more than a refined sedan—it becomes a car that excites every time you drive it.