OS SPEED TB-01 EFRA2042 21GT II

Engineered by Japan’s top-tier RC engine brand OS SPEED, the 21GT II Combo Set is a race-grade 2-stroke engine designed for 1/8 GT cars. This complete set includes the EFRA2042-certified TB01 tuned pipe and MB01-70 manifold, delivering outstanding throttle response and top-level racing performance.

✅ Smooth high-RPM power
✅ Designed for 1/8 GT racing
✅ Includes tuned pipe & manifold
✅ Made in Japan