The GR Supra is already of the most powerful Toyota sports car you can buy today. From the factory, the 2021 model produces 387 HP and 500 Nm torque from a 3.0-liter turbocharged straight-six. But compared to other performance models like the Nissan GT-R and the Honda NSX, the GR Supra is lacking quite a bit.

Fortunately, you can now get a big bump in performance thanks to Toyota tuner TOM'S.


TOM'S has just released an upgraded ECU (called T.E.C. II) for the GR Supra, and the power increase is quite significant. By upgrading the ECU alone, the tuner claims owners the 3.0-liter straight six or “RZ” variant in Japan can get an additional 59 HP and 70 Nm of torque. This would push the straight-six engine to produce 446 HP and 570 Nm torque – good enough numbers to go against the GT-R and NSX.

Aside from the 3.0-liter mill, TOM'S also offers an ECU upgrade for the 2.0-liter four-cylinder powered Supra, known as the SZ-R in Japan. Unlike the ECU for the 3.0-liter mill, the power upgrade for the 2.0-liter motor is not as big; only an additional 36 HP and 18 Nm torque. Though the figures might be small, we bet 2.0-liter GR Supra owners can still feel the boost in power and torque when going for a spirited drive.


As much as the ECU helped bump up the power, TOM'S did say the car they tested also used other parts in the tuner's lineup. They have not confirmed whether using the factory Toyota parts will generate the same power increase. So far, the only other performance part the tuning shop offers is a full titanium exhaust system.


The TOM'S ECU for the GR Supra will be available this October and will retail for ¥ 250,000 (Php 114,430) plus taxes. Don't forget you will likely have to ship it to the Philippines too. If you want to get the titanium exhaust as well, that part alone costs ¥ 560,000 (Php 256,330) plus taxes. We're also not sure if the new ECU will be compatible with GR Supra models sold outside of Japan.

No doubt this is a lot of money for an additional 59 HP increase. But, at least using TOM's parts could save your vehicle's warranty as opposed to doing a custom tune using the factory ECU.