Mercedes-Benz SLK Remap: Stage 1 BHP Figures

Find your engine

R172 (2011 onwards)R171 (2004–2011)R170 (2000–2004)

Mercedes-Benz SLK 250 CDI power & torque delivery

Power & torqueindicative curve, scaled to the published figures

Stage 1

240 bhp from 204+36 bhp580 Nm from 500+80 Nm

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

240 bhp from 204+36 bhp580 Nm from 500+80 Nm

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.

R172 (2011 onwards)

Engine	Standard	Stage 1custom dyno tuning	Stage 2custom dyno tuning	Price
SLK 200 1.81796cc · Petrol	184 bhp 270 Nm	210 bhp+26 380 Nm+110	—	£549	Book
SLK 250 1.81796cc · Petrol	204 bhp 310 Nm	220 bhp+16 380 Nm+70	—	£549	Book
SLK 3503498cc · Petrol	306 bhp 370 Nm	320 bhp+14 390 Nm+20	—	£549	Book
SLK 55 AMG V85461cc · Petrol	421 bhp 540 Nm	440 bhp+19 565 Nm+25	—	£999	Book
SLK 250 CDI2143cc · Diesel	204 bhp 500 Nm	240 bhp+36 580 Nm+80	—	£549	Book

R171 (2004–2011)

Engine	Standard	Stage 1custom dyno tuning	Stage 2custom dyno tuning	Price
SLK 200 K1998cc · Petrol	163 bhp 240 Nm	175 bhp+12 255 Nm+15	—	£549	Book
SLK 200 K1998cc · Petrol	184 bhp 250 Nm	205 bhp+21 300 Nm+50	—	£549	Book
SLK 350 V63498cc · Petrol	272 bhp 350 Nm	292 bhp+20 375 Nm+25	—	£549	Book
SLK 55 AMG5439cc · Petrol	360 bhp 510 Nm	385 bhp+25 535 Nm+25	—	£999	Book

R170 (2000–2004)

Engine	Standard	Stage 1custom dyno tuning	Stage 2custom dyno tuning	Price
SLK 200 K1998cc · Petrol	163 bhp 230 Nm	175 bhp+12 245 Nm+15	—	£549	Book
SLK 230 K2295cc · Petrol	193 bhp 280 Nm	205 bhp+12 295 Nm+15	—	£549	Book
SLK 32 AMG3199cc · Petrol	354 bhp 450 Nm	375 bhp+21 475 Nm+25	—	£799	Book

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 SLK 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, timing, fuelling and temperatures all watched in real time under load: knock on the petrols, rail pressure and exhaust temps on the diesels.
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 SLK remapping questions

What gains can I expect from Stage 1 on a Mercedes-Benz SLK?

Every Mercedes-Benz SLK engine is different, which is why they are listed separately above. At the top end the SLK 250 CDI picks up 36bhp, going 204bhp to 240bhp with torque up to 580Nm.

How much is Stage 1 tuning on a Mercedes-Benz SLK?

A Mercedes-Benz SLK 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 SLK?

You will need to tell your insurer, as with any modification, and it can affect a remaining manufacturer warranty. Every map is reversible, so the Mercedes-Benz SLK can be put back to its factory software at any point.

Can the remap be reversed, and how long does it take?

Allow roughly two hours for Stage 1, including any ECU unlock on our own bench. Everything is reversible: the Mercedes-Benz SLK can go back to its factory software on request.

Ways to pay

when you pay in full0% finance over 6 monthsCard & Apple Pay£50 deposit secures your slotHow finance works ›

Other Mercedes-Benz models

A-Class AMG GT AMG GT 4-Door Coupe B-Class C-Class Citan CL-Class CLA CLC-Class CLK CLS E-Class G-Class GL-Class GLA GLB GLC GLE GLS M-Class R-Class S-Class SL SLC SLS AMG Sprinter V-Class Vaneo Viano Vito X-Class All 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.

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Mercedes-Benz SLK Stage 1 Remap