Toyota remapping

Stage 1 is available across the GR range and the Hilux, developed and verified on our 4WD Bapro dyno rather than estimated from a spec sheet. Stage 2 is available on the turbocharged GR models, GR Corolla, GR Yaris and Supra, where supporting hardware is fitted, and we will advise honestly on whether it is worth pursuing over Stage 1. An economy remap suits Hilux owners covering high mileage, alongside speed limiter removal for trade and fleet use on the same vehicle. Gearbox recalibration is available on automatic-equipped cars, including the Supra's ZF eight-speed. Launch control coding is available on the GR Corolla and GR Yaris where the platform supports it, and a flame tune, pops and bangs on the overrun, can be coded in on the petrol GR models for private, off-road use only. We do not offer Stage 2 on the naturally aspirated GR86, its remap headroom is a refinement story rather than a boost-driven one.

The GR Yaris and GR Corolla both run Toyota's G16E-GTS, a 1.6-litre turbocharged three-cylinder sending drive through the GR-Four all-wheel-drive system. The Yaris produces 257 bhp from the factory across the range, including Circuit Pack cars (the Circuit Pack adds a mechanical front and rear Torsen limited-slip differential and suspension changes, not extra power), while the Corolla is rated at 300 bhp from the factory. Both leave real Stage 1 headroom above those figures once the factory's conservative multi-market calibration is properly developed.

The GR86 runs a naturally aspirated FA24 2.4-litre flat-four producing 231 bhp, the same engine architecture found in the Subaru BRZ, built jointly by the two manufacturers. There is no turbo here, so a remap refines timing and fuelling for sharper response rather than chasing a large bhp figure, an honest ceiling rather than a weakness. See our Subaru hub for how the same engine performs in the BRZ.

The Supra runs BMW's B58 3.0-litre turbocharged straight-six in its higher-output form, or a smaller 2.0-litre turbo in entry specification, driving the rear wheels only. Because it shares its principal engine with BMW's own B58 range, Supra calibration work draws on the same platform knowledge as our BMW-badged B58 cars.

The Hilux runs Toyota's 1GD-FTV 2.8-litre D-4D diesel, producing 148 bhp up to the 2020 facelift and 201 to 204 bhp from the 2020 Euro 6 update onward, through a permanent or selectable 4x4 driveline. Diesel remapping here focuses on torque and economy gains within the engine's existing hardware, verified on the dyno rather than guessed at from a chip-tuning brochure.