2025+ Toyota 4Runner i-FORCE Overland Tailor Tune Stage 1 | COBB Accessport Custom Calibration | 2.4L Turbo Gas Performance

Built for the All-New 6th Gen 4Runner

The 2025+ Toyota 4Runner i-FORCE 2.4L turbocharged engine delivers impressive factory capability — but once you add armor, larger tires, rooftop tents, recovery gear, or towing weight, the stock calibration begins to feel muted and conservative.

The Overland Tailor Tune (OTT) Stage 1 tune is engineered specifically for gas-powered 2025+ 4Runner builds that prioritize torque, smooth power delivery, and real-world drivability over peak dyno numbers.

Installed via the COBB Accessport V3, this calibration transforms how your 4Runner responds under load, at altitude, and in technical terrain. This is an expedition-ready refinement tune. 

Designed for Overland & Adventure Builds

Unlike generic performance flashes focused on top-end horsepower, the Overland Tailor Tune is optimized for:

Low-RPM torque enhancement

Reduced throttle lag

Stronger mid-range acceleration

Improved drivability with 33”–35” tires

Reduced gear hunting under load

Better performance at elevation

Refined towing response

Whether you're climbing mountain passes, crawling through technical sections, or cruising long highway miles fully loaded — your 4Runner feels composed, confident, and responsive.