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BMW Tuning
Before and after power and torque for every BMW 4-Series engine we tune, measured on our in-house 4WD dyno. Every map is written for your exact car and is fully reversible.
| Engine | Standard | Stage 1 | Stage 2 | Price | |
|---|---|---|---|---|---|
| 418iPetrol | 136 bhp 220 Nm | 170 bhp+34 300 Nm+80 | — | £449+ gearbox £325 S1 + gearbox £649 › | Book |
| 418dDiesel | 150 bhp 320 Nm | 190 bhp+40 400 Nm+80 | — | £449+ gearbox £325 S1 + gearbox £649 › | Book |
| 420dDiesel | 163 bhp 380 Nm | 220 bhp+57 440 Nm+60 | — | £449+ gearbox £325 S1 + gearbox £649 › | Book |
| 420iPetrol | 184 bhp | 260 bhp+76 420 Nm+150 | — | £449+ gearbox £325 S1 + gearbox £649 › | Book |
| 420dDiesel | 184 bhp 380 Nm | 230 bhp+46 500 Nm+120 | 240 bhp+56 520 Nm+140 | £449Stage 2 £599+ gearbox £325 S1 + gearbox £649 › S2 + gearbox £799 › | Book |
| 420dDiesel | 190 bhp 400 Nm | 220 bhp+30 440 Nm+40 | — | £449+ gearbox £325 S1 + gearbox £649 › | Book |
| 425dDiesel | 224 bhp 450 Nm | 270 bhp+46 500 Nm+50 | — | £449+ gearbox £325 S1 + gearbox £649 › | Book |
| 430iPetrol | 230 bhp 350 Nm | 310 bhp+80 470 Nm+120 | — | £449+ gearbox £325 S1 + gearbox £649 › | Book |
| 430iPetrol | 252 bhp 350 Nm | 310 bhp+58 470 Nm+120 | — | £449+ gearbox £325 S1 + gearbox £649 › | Book |
| 430dDiesel | 258 bhp 560 Nm | 330 bhp+72 690 Nm+130 | 340 bhp+82 720 Nm+160 | £449Stage 2 £599+ gearbox £325 S1 + gearbox £649 › S2 + gearbox £799 › | Book |
| 435dDiesel | 313 bhp 630 Nm | 390 bhp+77 780 Nm+150 | 400 bhp+87 810 Nm+180 | £449Stage 2 £599+ gearbox £325 S1 + gearbox £649 › S2 + gearbox £799 › | Book |
| 440iPetrol | 326 bhp 450 Nm | 400 bhp+74 580 Nm+130 | 420 bhp+94 620 Nm+170 | £449Stage 2 £599+ gearbox £325 S1 + gearbox £649 › S2 + gearbox £799 › | Book |
| 440i (PP)Petrol | 360 bhp 500 Nm | 400 bhp+40 580 Nm+80 | 420 bhp+60 620 Nm+120 | £449Stage 2 £599+ gearbox £325 S1 + gearbox £649 › S2 + gearbox £799 › | Book |
Stage 2 Diesel supporting mods: DPF delete (off-road use only) + uprated intercooler.
Stage 2 Petrol supporting mods: decat or sports cat + uprated intercooler.
| Engine | Standard | Stage 1 | Stage 2 | Price | |
|---|---|---|---|---|---|
| 418i1499cc - B38A15 · Petrol | 136 bhp 220 Nm | 165 bhp+29 300 Nm+80 | — | £449+ gearbox £325 S1 + gearbox £649 › | Book |
| 418d1995cc - B47 · Diesel | 150 bhp 360 Nm | 190 bhp+40 400 Nm+80 | 200 bhp+50 420 Nm+100 | £449Stage 2 £599+ gearbox £325 S1 + gearbox £649 › S2 + gearbox £799 › | Book |
| 420d1995cc - N47D20 · Diesel | 163 bhp 380 Nm | 220 bhp+57 440 Nm+60 | 235 bhp+72 460 Nm+80 | £449Stage 2 £599+ gearbox £325 S1 + gearbox £649 › S2 + gearbox £799 › | Book |
| 420i1997cc - N20B20 · Petrol | 184 bhp 270 Nm | 260 bhp+76 420 Nm+150 | 280 bhp+96 450 Nm+180 | £449Stage 2 £599+ gearbox £325 S1 + gearbox £649 › S2 + gearbox £799 › | Book |
| 420d1995cc - N47D20 · Diesel | 184 bhp 380 Nm | 230 bhp+46 500 Nm+120 | 240 bhp+56 520 Nm+140 | £449Stage 2 £599+ gearbox £325 S1 + gearbox £649 › S2 + gearbox £799 › | Book |
| 420d1995cc - B47 · Diesel | 190 bhp 400 Nm | 220 bhp+30 440 Nm+40 | — | £449+ gearbox £325 S1 + gearbox £649 › | Book |
| 420d PPDiesel | 200 bhp 420 Nm | 220 bhp+20 440 Nm+20 | — | £449+ gearbox £325 S1 + gearbox £649 › | Book |
| 425d1995cc - N47D20 · Diesel | 218 bhp 450 Nm | 270 bhp+52 500 Nm+50 | 285 bhp+67 520 Nm+70 | £449Stage 2 £599+ gearbox £325 S1 + gearbox £649 › S2 + gearbox £799 › | Book |
| 428i1997cc - N20B20 · Petrol | 245 bhp 350 Nm | 290 bhp+45 450 Nm+100 | 310 bhp+65 480 Nm+130 | £449Stage 2 £599+ gearbox £325 S1 + gearbox £649 › S2 + gearbox £799 › | Book |
| 428i SULEV1997cc - N26B20 · Petrol | 245 bhp 350 Nm | 290 bhp+45 450 Nm+100 | 310 bhp+65 480 Nm+130 | £449Stage 2 £599+ gearbox £325 S1 + gearbox £649 › S2 + gearbox £799 › | Book |
| 430d2993cc - N57D30 · Diesel | 258 bhp 560 Nm | 330 bhp+72 690 Nm+130 | 340 bhp+82 720 Nm+160 | £449Stage 2 £599+ gearbox £325 S1 + gearbox £649 › S2 + gearbox £799 › | Book |
| 430d PPDiesel | 286 bhp 600 Nm | 310 bhp+24 650 Nm+50 | — | £449+ gearbox £325 S1 + gearbox £649 › | Book |
| 435i2979cc - N55B30 · Petrol | 306 bhp 400 Nm | 365 bhp+59 520 Nm+120 | 385 bhp+79 540 Nm+140 | £449Stage 2 £599+ gearbox £325 S1 + gearbox £649 › S2 + gearbox £799 › | Book |
| 435d2993cc - N57D30 · Diesel | 313 bhp 630 Nm | 390 bhp+77 780 Nm+150 | 400 bhp+87 810 Nm+180 | £449Stage 2 £599+ gearbox £325 S1 + gearbox £649 › S2 + gearbox £799 › | Book |
| 435i PPPetrol | 339 bhp 450 Nm | 365 bhp+26 520 Nm+70 | 385 bhp+46 540 Nm+90 | £449Stage 2 £599+ gearbox £325 S1 + gearbox £649 › S2 + gearbox £799 › | Book |
Stage 2 Diesel supporting mods: DPF delete (off-road use only) + uprated intercooler.
Stage 2 Petrol supporting mods: decat or sports cat + uprated intercooler.
Whichever you pick, the total carries through to checkout — pay in full by card, Apple Pay or Klarna (3 interest-free payments), or secure the slot with a £50 deposit. Figures are typical results for a healthy, standard vehicle on our dyno. Your car’s actual output depends on its condition, fuel quality and any supporting modifications. Prices shown are for Stage 1 custom dyno tuning inc VAT; locked ECUs (most BMW and Audi registered from mid-2020) carry an additional unlocking charge, confirmed when you book.