All Alfa Romeo 156 engines with factory and tuned power figures.
| Engine | Factory | Stage 1 |
|---|---|---|
| 1.9Jtd 105 hp | 105 hp / 255 Nm | 135 hp / 310 Nm |
| 1.9Jtd 110 hp | 110 hp / 275 Nm | 140 hp / 330 Nm |
| 1.9Jtd 115 hp | 115 hp / 275 Nm | 145 hp / 325 Nm |
| 1.9Jtd 136 hp | 136 hp / 305 Nm | 175 hp / 380 Nm |
| 2.4Jtd 136 hp | 136 hp / 304 Nm | 170 hp / 380 Nm |
| 1.9Jtd 140 hp | 140 hp / 305 Nm | 175 hp / 380 Nm |
| 2.4Jtd 140 hp | 140 hp / 304 Nm | 170 hp / 380 Nm |
| 2.4Jtd 150 hp | 150 hp / 305 Nm | 185 hp / 385 Nm |
| 2.5 V6 190 hp | 190 hp / 222 Nm | 200 hp / 242 Nm |
| 3.2 V6 GTA 250 hp | 250 hp / 300 Nm | 270 hp / 320 Nm |
| Engine | Factory | Stage 1 |
|---|---|---|
| 1.9Jtd 115 hp | 115 hp / 275 Nm | 145 hp / 330 Nm |
| 1.9 jtd 126 hp | 126 hp / 330 Nm | 175 hp / 380 Nm |
| 1.9Jtd 136 hp | 136 hp / 305 Nm | 175 hp / 380 Nm |
| 1.9Jtd 140 hp | 140 hp / 305 Nm | 175 hp / 380 Nm |
| 1.9Jtd 150 hp | 150 hp / 305 Nm | 185 hp / 380 Nm |
| 2.4Jtd 163 hp | 163 hp / 385 Nm | 220 hp / 440 Nm |
| 2.4Jtd 175 hp | 175 hp / 385 Nm | 220 hp / 440 Nm |
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