Journal
Ask a third-generation Tacoma owner what they would change and most say the same thing: the 3.5 V6 feels flat off the line and the transmission hunts for gears. A plug-in performance chip addresses the first half of that directly. By keeping the ECU in the more responsive part of its throttle map it makes the pedal answer sooner and firms up the mid-range, and because the transmission responds to throttle input, many owners find the truck holds a gear more willingly too. The Tacoma is Thorton’s second most-tuned Toyota after the Tundra, and TRD Off-Road owners are the largest single group.
The change is mostly throttle response and the 2,500 to 4,500 rpm mid-range, which is where the 3.5 feels weakest in stock form. Owners describe it as the truck no longer needing a big push of the pedal to get going. Fuel economy gains show up on highway commutes when driven the same way as before.
The 2.7 has less headroom but responds in the same way: a sharper pedal and better mid-range. Stage 2 is a sensible choice for a 2.7 used mainly in town.
Turbocharged engines have the most to gain. The chip brings boost in earlier off idle and sharpens throttle mapping. The hybrid system on the i-Force Max is untouched.
Second-generation Tacomas with the 4.0 gain a firmer throttle and better mid-range; the chip is configured for Tacomas back to 1996.
Toyota ECUs are tightly locked, flash options for the Tacoma are limited and expensive, and every flash increments the counter a dealer reads. A Thorton chip never writes to the ECU, cannot exceed the factory limits because the ECU still enforces them, and unplugs without a trace before a service visit. That fits a truck people buy to keep for fifteen years. The warranty detail is in Does chip tuning void your warranty?
Of the Toyota chips shipped in the last year, 87% were Stage 3, 9% Stage 2 and 4% Stage 1. Stage 3 targets up to 60 extra horsepower and the strongest throttle response. The stage guide compares them.
The OBD2 port is under the lower dash to the left of the steering column, behind a small hinged cover on 2016-on trucks. Engine off, plug in, start, confirm the three LEDs, drive a tank. Full steps in the installation guide.
Log a baseline with the Performance Analysis Kit before installing and repeat the route after a tank.
Select your year, model and engine on the Toyota performance chip page. Free US shipping, dispatched within one business day, 30-day risk-free trial.
Find your vehicle and see your gains in seconds.
The companion to your Thorton chip. See real performance gains, monitor engine health and diagnose issues from your phone.
$59.95 on its own. The $10 comes off automatically when a Thorton Performance Chip is in the same order.
