BMW M3 E46 - 1998 - 2005 M3 343hp
Real standard and upgraded performance figures for the M3 343hp engine in the BMW M3 E46 - 1998 - 2005.
Below: measured output for the M3 343hp in the BMW M3 E46 - 1998 - 2005, standard vs. remapped, in both horsepower and torque.
| Horsepower (HP) | Torque (Nm) | |
|---|---|---|
| Standard | 343 | 365 |
| Stage 1 | 365 | 390 |
| Stage 2 | 375 | 400 |
- Make
- BMW
- Model
- M3
- Generation
- E46 - 1998 - 2005
- Engine
- M3 343hp
- Fuel type
- Petrol
Frequently asked questions
Is Stage 1 tuning safe for the BMW M3 E46 - 1998 - 2005 M3 343hp?
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 M3 343hp make after tuning?
Standard output is 343 HP / 365 Nm; Stage 1 on this engine typically reaches 365 HP / 390 Nm. Exact results can vary slightly with fuel quality and vehicle condition.
How long does a BMW M3 E46 - 1998 - 2005 M3 343hp 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 M3 343hp 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.