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Mercedes-Benz Tuning
Typical before and after power and torque for every Mercedes-Benz SL engine we tune. Your own car is custom mapped on our in-house 4WD dyno, and every map is fully reversible.
No engine matches that. Try fewer letters, or check your car by reg.
Shape is indicative. Your real before & after curves are measured on our 4WD dyno on the day and you take the printout home.
Shape is indicative. Your real before & after curves are measured on our 4WD dyno on the day and you take the printout home.
| Engine | Standard | Stage 1custom dyno tuning | Stage 2custom dyno tuning | Price | |
|---|---|---|---|---|---|
| SL 4002996cc · Petrol | 367 bhp 500 Nm | 420 bhp+53 590 Nm+90 | — | £699 | Book |
| SL 5004663cc · Petrol | 456 bhp 700 Nm | 485 bhp+29 850 Nm+150 | — | £699 | Book |
| SL 63 AMG V8 BiTurbo5461cc · Petrol | 585 bhp 900 Nm | 660 bhp+75 1100 Nm+200 | — | £999 | Book |
| SL 65 AMG V12 BiTurbo5980cc · Petrol | 630 bhp 1000 Nm | 740 bhp+110 1300 Nm+300 | — | £1299 | Book |
| Engine | Standard | Stage 1custom dyno tuning | Stage 2custom dyno tuning | Price | |
|---|---|---|---|---|---|
| SL 400 V6 BiTurbo2996cc · Petrol | 333 bhp 480 Nm | 400 bhp+67 580 Nm+100 | — | £699 | Book |
| SL 500 V8 BiTurbo4663cc · Petrol | 435 bhp 700 Nm | 550 bhp+115 850 Nm+150 | — | £699 | Book |
| SL 63 AMG V8 BiTurbo6208cc · Petrol | 537 bhp 800 Nm | 660 bhp+123 900 Nm+100 | — | £999 | Book |
| SL 63 AMG V8 BiTurbo Pack Performance6208cc · Petrol | 571 bhp 900 Nm | Figures being updated | — | £999 | Book |
| SL 63 AMG V8 BiTurbo6208cc · Petrol | 585 bhp 900 Nm | Figures being updated | — | £999 | Book |
| SL 65 AMG V12 BiTurbo5980cc · Petrol | 630 bhp 1000 Nm | 680 bhp+50 1150 Nm+150 | — | £1299 | Book |
| Engine | Standard | Stage 1custom dyno tuning | Stage 2custom dyno tuning | Price | |
|---|---|---|---|---|---|
| SL 350 V63724cc · Petrol | 245 bhp 350 Nm | 258 bhp+13 373 Nm+23 | — | £549 | Book |
| SL 500 V84966cc · Petrol | 306 bhp 460 Nm | 326 bhp+20 485 Nm+25 | — | £699 | Book |
| SL 500 V85461cc · Petrol | 388 bhp 530 Nm | 408 bhp+20 570 Nm+40 | — | £699 | Book |
| SL 55 AMG5439cc · Petrol | 476 bhp 700 Nm | 540 bhp+64 820 Nm+120 | — | £999 | Book |
| SL 55 AMG5439cc · Petrol | 500 bhp 700 Nm | 540 bhp+40 820 Nm+120 | — | £999 | Book |
| SL 600 V125987cc · Petrol | 500 bhp 800 Nm | 578 bhp+78 910 Nm+110 | — | £1299 | Book |
| SL 55 AMG5439cc · Petrol | 517 bhp 700 Nm | 540 bhp+23 820 Nm+120 | — | £999 | Book |
| SL 600 V12 Turbo5987cc · Petrol | 517 bhp 830 Nm | 585 bhp+68 910 Nm+80 | — | £1299 | Book |
| SL 63 AMG6208cc · Petrol | 525 bhp 630 Nm | 540 bhp+15 660 Nm+30 | — | £999 | Book |
| SL 65 AMG Turbo5980cc · Petrol | 612 bhp 1000 Nm | 670 bhp+58 1100 Nm+100 | — | £1299 | Book |
| SL 65 AMG BlackSeries Turbo5980cc · Petrol | 670 bhp 1000 Nm | 700 bhp+30 1100 Nm+100 | — | £1299 | Book |
Not a generic file bought in and flashed over the port. Your Mercedes-Benz SL is strapped to our in-house 4WD dyno and the map is written for your car, on the day, from its own data.
Whichever you pick, the total carries through to checkout, so pay in full by card, Apple Pay or Klarna, or secure the slot with a £50 deposit. Figures are typical for a healthy, standard vehicle; your before and after dyno printout shows exactly what your car makes. Your car’s actual output depends on its condition, fuel quality and any supporting modifications. Prices shown are for Stage 1 custom dyno tuning; locked ECUs (most BMW and Audi registered from mid-2020) carry an additional unlocking charge, confirmed when you book.