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Home › Tuning Figures › All Models › Mercedes-Benz SL

Mercedes-Benz Tuning

Mercedes-Benz SL Stage 1 Remap

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.

Mercedes-Benz SL 63 AMG V8 BiTurbo power & torque delivery

Power & torqueindicative curve, scaled to the published figures
Stage 1
660 bhp from 537+123 bhp900 Nm from 800+100 Nm
20030040060060090080012001000200030004000500060007000bhpNmRPM900 Nm660 bhp
Tuned bhpTuned NmStock bhpStock Nm

Shape is indicative. Your real before & after curves are measured on our 4WD dyno on the day and you take the printout home.

Power & torqueindicative curve, scaled to the published figures
Stage 1
660 bhp from 537+123 bhp900 Nm from 800+100 Nm
20030040060060090080012001k2k3k4k5k6k7kbhpNmRPM900 Nm660 bhp
Tuned bhpTuned NmStock bhpStock Nm

Shape is indicative. Your real before & after curves are measured on our 4WD dyno on the day and you take the printout home.

R231 facelift (2016–2022)

EngineStandardStage 1custom dyno tuningStage 2custom dyno tuningPrice
SL 4002996cc · Petrol367 bhp
500 Nm
420 bhp+53
590 Nm+90
—£699Book
SL 5004663cc · Petrol456 bhp
700 Nm
485 bhp+29
850 Nm+150
—£699Book
SL 63 AMG V8 BiTurbo5461cc · Petrol585 bhp
900 Nm
660 bhp+75
1100 Nm+200
—£999Book
SL 65 AMG V12 BiTurbo5980cc · Petrol630 bhp
1000 Nm
740 bhp+110
1300 Nm+300
—£1299Book

R231 (2012–2016)

EngineStandardStage 1custom dyno tuningStage 2custom dyno tuningPrice
SL 400 V6 BiTurbo2996cc · Petrol333 bhp
480 Nm
400 bhp+67
580 Nm+100
—£699Book
SL 500 V8 BiTurbo4663cc · Petrol435 bhp
700 Nm
550 bhp+115
850 Nm+150
—£699Book
SL 63 AMG V8 BiTurbo6208cc · Petrol537 bhp
800 Nm
660 bhp+123
900 Nm+100
—£999Book
SL 63 AMG V8 BiTurbo Pack Performance6208cc · Petrol571 bhp
900 Nm
Figures being updated—£999Book
SL 63 AMG V8 BiTurbo6208cc · Petrol585 bhp
900 Nm
Figures being updated—£999Book
SL 65 AMG V12 BiTurbo5980cc · Petrol630 bhp
1000 Nm
680 bhp+50
1150 Nm+150
—£1299Book

R230 (2001–2012)

EngineStandardStage 1custom dyno tuningStage 2custom dyno tuningPrice
SL 350 V63724cc · Petrol245 bhp
350 Nm
258 bhp+13
373 Nm+23
—£549Book
SL 500 V84966cc · Petrol306 bhp
460 Nm
326 bhp+20
485 Nm+25
—£699Book
SL 500 V85461cc · Petrol388 bhp
530 Nm
408 bhp+20
570 Nm+40
—£699Book
SL 55 AMG5439cc · Petrol476 bhp
700 Nm
540 bhp+64
820 Nm+120
—£999Book
SL 55 AMG5439cc · Petrol500 bhp
700 Nm
540 bhp+40
820 Nm+120
—£999Book
SL 600 V125987cc · Petrol500 bhp
800 Nm
578 bhp+78
910 Nm+110
—£1299Book
SL 55 AMG5439cc · Petrol517 bhp
700 Nm
540 bhp+23
820 Nm+120
—£999Book
SL 600 V12 Turbo5987cc · Petrol517 bhp
830 Nm
585 bhp+68
910 Nm+80
—£1299Book
SL 63 AMG6208cc · Petrol525 bhp
630 Nm
540 bhp+15
660 Nm+30
—£999Book
SL 65 AMG Turbo5980cc · Petrol612 bhp
1000 Nm
670 bhp+58
1100 Nm+100
—£1299Book
SL 65 AMG BlackSeries Turbo5980cc · Petrol670 bhp
1000 Nm
700 bhp+30
1100 Nm+100
—£1299Book

Every price on this page is a full custom dyno tune

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.

  • Health check firstWe look the car over and read the fault memory before we touch anything. If something is wrong, you get told. We don't map over a problem.
  • Live data loggingBoost, ignition timing, fuelling, knock and temperatures all watched in real time while the car is running under load.
  • Custom calibration on the dynoThe map is built and adjusted run by run against what your engine is actually doing, not what a file supplier assumed.
  • Before and after printoutYou leave with the graph: your standard figures and your tuned figures, measured on the same rollers, the same day.
Spread the cost. From £91.50/mo over 6 months at 0% APR with Bumper, interest free.
Split your purchase into 3 interest-free instalments with Klarna. Borrowing more than you can afford or paying late may negatively impact your financial status and ability to obtain credit. Subject to status. Ts&Cs and late fees apply.
For Klarna, choose Pay in full when you book. How finance works ›

Mercedes-Benz SL remapping questions

How much power will a Stage 1 remap add to a Mercedes-Benz SL?
Every Mercedes-Benz SL engine is different, which is why they are listed separately above. At the top end the SL 63 AMG V8 BiTurbo picks up 123bhp, going 537bhp to 660bhp with torque up to 900Nm.
How much is Stage 1 tuning on a Mercedes-Benz SL?
A Mercedes-Benz SL Stage 1 is from £549. Finance is 0% over 6 months with Bumper, or choose Pay in full when you book and pay with Klarna.
What happens to my warranty and insurance if I tune my Mercedes-Benz SL?
A remap is an aftermarket modification, so it is your responsibility to declare it to your insurer. It may also affect any remaining manufacturer warranty. Our maps are fully reversible: the car can be put back to its factory software whenever you need.
Can the remap be reversed, and how long does it take?
Most Stage 1 tunes take around two hours, and if the ECU needs unlocking we do that on our own bench during the same visit, with no extra time. It is completely reversible: the car can go back to its factory software whenever you need.
Ways to payKlarnawhen you pay in full0% finance over 6 monthsCard & Apple Pay£50 deposit secures your slotHow finance works ›

Other Mercedes-Benz models

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.