Considering an ECU remap for your BMW 3 Series 323i 170hp? A Stage 1 remap can take this E36 petrol engine from 170 BHP to 185 BHP and from 245 Nm to 260 Nm of torque (naturally aspirated). This engine scores 4/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your BMW 3 Series can achieve.
The BMW 3 serie 323i 170hp is a 2.5L naturally aspirated petrol engine producing 170 BHP and 245 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 185 BHP and 260 Nm — a gain of around 15 BHP (9%) and 15 Nm (6%).
This engine has limited remap suitability, though the available headroom is limited, so gains are modest compared to higher-output variants. The tuning headroom is classified as limited, based on the percentage gain available from the factory output.
Considerations: Naturally aspirated engine: gains are usually limited; results vary widely.
All figures shown are typical estimates based on aggregated Stage 1 data for this engine variant. Actual results depend on vehicle condition, mileage, and the chosen tuning method. We recommend discussing your specific vehicle with a qualified remap professional.
| Engine | BHP | Gain | Torque | Gain | Score |
|---|---|---|---|---|---|
| 318 TDS 90hp | 90 → 115 | +25 | 190 → 240 | +50 | Good (7.5/10) |
| 325 TD 115hp | 115 → 140 | +25 | 245 → 285 | +40 | Good (7/10) |
| 325 TDS 143hp | 143 → 170 | +27 | 260 → 330 | +70 | Good (7.5/10) |
Get a personalised remap quote for your BMW 3 Series. We'll connect you with a trusted professional in your area.
All figures shown are typical estimates based on aggregated Stage 1 data for this engine variant. Actual results depend on vehicle condition, mileage, and the chosen tuning method.
We recommend discussing your specific vehicle with a qualified remap professional before proceeding.
