Bus
Yutong · Coaches
ZK6858H9 6.7L I4211hp
From 2013 · 2013 → present
Tuning gain
+46HP
+190Nm
Stock HP
211hp
Tuned HP
257hp
Stock Torque
800Nm
Tuned Torque
990Nm
Power curve
Horsepower
+46 hpStock
211
Tuned
257
Torque curve
Torque
+190 NmStock
800
Tuned
990
Power & torque curves
Illustrative · interpolated from peak values- Stock HP
- Stock Nm
- Tuned HP
- Tuned Nm
Available tuning options· Chiptuning
SCR OFFEGR OFFDPF OFFdtc's offEcoTuning
About this tune
DynoVault's Stage 1 chiptuning for Yutong Coaches ZK6858H9 6.7L I4211hp delivers a measured gain of +46 hp (211 → 257) and +190 Nm of torque (800 → 990). The ECU file is custom-mapped per variant and tested against the original safety margins for boost, fueling, and EGT. Available with a lifetime tune warranty and optional fuel-economy mode.
Benefits
- ▸Custom file guarantee.
- ▸Possibly of minimize fuel consumption.