Toyota GR Yaris in at Whifbitz for Service, Mods & Remap

We had another Toyota GR Yaris in the Whifbitz workshop today, this time in for an oil service using Millers Oils along with an Ecutek remap and some carefully chosen performance upgrades.

Mods already fitted to this GR Yaris:

✅ Akrapovic exhaust & GPF delete – freeing up flow and sharpening the exhaust note
✅ Eventuri intake kit – improving airflow
✅ Pro Alloy intercooler & pipe kit – keeping intake temps lower and consistent
✅ Braid 18″ wheels – don’t they look good in white!
✅ Nitron coilovers – premium suspension setup for sharper handling on circuit

Dyno Results

With the above hardware already fitted, we ran the car on our dyno and it produced 234whp (284bhp) on 99RON fuel. After carrying out the Ecutek custom remap, the GR Yaris now makes 274whp (330bhp) – a solid +46bhp gain.

The result is a sharper, more powerful GR Yaris that delivers stronger midrange punch and improved driveability, perfectly suited for track days.

At Whifbitz, we specialise in GR Yaris tuning – from servicing and ECU mapping to full-on performance builds.

📞 Get in touch with us today if you’d like to unlock the true potential of your GR Yaris!