GMC Savana 2003 -> 4.8 V8 275hp

Real standard and upgraded performance figures for the 4.8 V8 275hp engine in the GMC Savana 2003 ->.

Below: measured output for the 4.8 V8 275hp in the GMC Savana 2003 ->, standard vs. remapped, in both horsepower and torque.

Horsepower (HP)Torque (Nm)
Standard275393
Stage 1295415
Stage 2305426
Make
GMC
Model
Savana
Generation
2003 ->
Engine
4.8 V8 275hp
Fuel type
petrol

Frequently asked questions

Is Stage 1 tuning safe for the GMC Savana 2003 -> 4.8 V8 275hp?

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 4.8 V8 275hp make after tuning?

Standard output is 275 HP / 393 Nm; Stage 1 on this engine typically reaches 295 HP / 415 Nm. Exact results can vary slightly with fuel quality and vehicle condition.

How long does a GMC Savana 2003 -> 4.8 V8 275hp 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 4.8 V8 275hp 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.