All GR Yaris Tuning Kits
Intake, cooling, exhaust, fueling, turbo & more—curated for the G16E-GTS.
Shop tuning kitsGR Yaris Tuning
Toyota GR Yaris
Tuning, Servicing & Parts by Garage Whifbitz
Proven calibrations, in-house dyno, complete tuning kits, and OEM or aftermarket parts for road & track.
- Since 2000
- In-house dyno
- Syvecs & stock ECU
- Road & track proven
GR Yaris Tuning
Engine Tuning Guide
What to upgrade and why—power paths, supporting mods and ECU choices.
Read the guide
Customer GR Yaris Builds
Real-world results from Whifbitz customers—specs, photos and inspiration.
See customer carsOEM & Aftermarket GR Yaris Parts
OEM
Perf
ECU
ECU Remaps
Custom ECU tuning for stock or modified GR Yaris engines. Road or track-ready calibrations.
Learn morePopular GR Yaris Modifications
- ECU Remaps Custom calibration for stock or modified engines, tailored for your goals — road or track.
- Suspension Coilovers or springs, geo setup, camber/caster solutions.
- Brakes Pads & discs, braided lines, high-temp fluids, BBKs.
- Intake & Exhaust Air filter kits/intakes, downpipes & cat-back systems.
- Cooling Intercoolers, radiators, oil cooling and ducting.
- Bodykits & Aero Splitters, diffusers, spoilers and styling.
Watch Our GR Yaris Projects
Dyno runs, builds and behind-the-scenes from our YouTube channel.