Yamaha YZF-R6 2003 - 2004 YZF-R6 123hp

Real standard and upgraded performance figures for the YZF-R6 123hp engine in the Yamaha YZF-R6 2003 - 2004.

This page covers the YZF-R6 123hp as fitted to the Yamaha YZF-R6 2003 - 2004 — the figures below reflect that specific engine, not the model as a whole.

Horsepower (HP)Torque (Nm)
Standard12367
Stage 112872
Stage 213074
Make
Yamaha
Model
YZF-R6
Generation
2003 - 2004
Engine
YZF-R6 123hp
Fuel type
Petrol

Frequently asked questions

Is Stage 1 tuning safe for the Yamaha YZF-R6 2003 - 2004 YZF-R6 123hp?

Yes — Stage 1 for this engine is a software-only remap calibrated to stay within its stock mechanical limits (turbo, clutch, fueling), so no hardware changes are required.

How much more power does the YZF-R6 123hp make after tuning?

Standard output is 123 HP / 67 Nm; Stage 1 on this engine typically reaches 128 HP / 72 Nm. Exact results can vary slightly with fuel quality and vehicle condition.

How long does a Yamaha YZF-R6 2003 - 2004 YZF-R6 123hp remap take?

Once your original file is uploaded through the member panel, most requests for this engine are completed within a few hours.

Can the YZF-R6 123hp be reverted to its original file?

Yes — we keep the original file on record for the request, so the ECU can be put back to stock at any time.