Best Tuning Chips for Mercedes-Benz SLK-Class (2004 – 2011)
Updated January, 2025
Price: £ – £
Looking for Mercedes-Benz SLK-Class Car Tuning Chip and want to know what’s available, which one is best and more information? We’ve answered all of this and more below.
Skip to content:
- HP Improvements for your model
- What are Tuning Chips?
- Why Choose RaceChip
- Compare RaceChip products
- Are tuning chips safe to use?
- RaceChip Reviews
- Installing RaceChip
- Videos
Mercedes-Benz SLK-Class Car Tuning Chip Available
The table below gives you an indication of the range of tuning chips available for Mercedes-Benz SLK-Class. If there are performance chips available from our preferred manufacturer, RaceChip, then you’ll be able to see how the performance gains you can get from each of their chips.
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Model Variant
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S Chip HP increase |
RS Chip HP increase |
GTS Chip HP increase |
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SLK 350 (305 HP/ 224 kW)
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S Chip: + HP |
RS Chip: + HP |
GTS Chip: + HP |
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SLK 200 S 184 HP (135 kW)
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SLK 55 AMG 400 HP (294 kW)
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Check website for chip availability |
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SLK 55 AMG 360 HP (265 kW)
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Check website for chip availability |
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SLK 200 S 163 HP (120 kW)
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Check website for chip availability |
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SLK 280 231 HP (170 kW)
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Check website for chip availability |
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SLK 300 231 HP (170 kW)
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Check website for chip availability |
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SLK 350 272 HP (200 kW)
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Check website for chip availability |
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SLK 200 184 HP (135 kW)
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S Chip: +36 HP |
RS Chip: +43 HP |
GTS Chip: +52 HP |
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SLK 200 184 HP (135 kW)
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S Chip: +36 HP |
RS Chip: +43 HP |
GTS Chip: +52 HP |
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SLK 300 245 HP (180 kW)
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S Chip: +32 HP |
RS Chip: +40 HP |
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SLK 250 204 HP (150 kW)
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S Chip: +40 HP |
RS Chip: +47 HP |
GTS Chip: +57 HP |
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SLK 250 CDI 204 HP (150 kW)
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S Chip: +28 HP |
RS Chip: +35 HP |
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SLK 350 306 HP (225 kW)
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Check website for chip availability |
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SLK 55 AMG 422 HP (310 kW)
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Check website for chip availability |
What Are Tuning Chips?
A tuning chip is a small electronic device that plugs into your car’s existing wiring (in your case a Mercedes-Benz SLK-Class). The chip then modifies your engine’s mapping in order to take advantage of performance and efficiency reserves or improvements.
Essentially the chip allows you to make full use of the power and torque that your engine is capable of safely producing.
Most tuning boxes can be installed at home by you, simply following a few instruction videos is usually enough.
Many people choose tuning chips over remaps because they can be unplugged simply to return to factory settings and are quick and easy to install.
For further information, this article from AutoExpress explains more about tuning chips.
Why Choose RaceChip?
RaceChip are recognised Worldwide for their incredible performance chips. They’re known to be extremely safe, reliable, easy to install and deliver incredible performance and fuel economy. Their chips are specifically configured for your car, and when we say that we don’t just mean a Mercedes-Benz SLK-Class, they go to the detail of tuning it specifically for the SLK 350 (305 HP/ 224 kW) variant, for example.
They also offer some of the best prices on the market, combined with the peace-of-mind engine warranty on some of their products, it’s a no brainer to choose RaceChip.
Compare RaceChip products
RaceChip offer 4 different tuning boxes, as well as other products such as pedal tuning products. The 4 tuning chips are
- S – this product offers in the region of a 20% HP and torque increase to your standard car. It has 5 fine-tuning mapping settings and can deliver around 15% improved MPG.
- RS – The RS offers in the region of a 25% HP and torque increase to your standard car. It has 6 fine-tuning mapping settings and can deliver up to 20% improved MPG. It also benefits from a 1-year engine warranty up to £2,400.
- GTS – The GTS chip offers in the region of a 30% HP and torque increase to your standard car. It has 7 fine-tuning mapping settings and can deliver up to 20% improved MPG. It also benefits from a 2-year engine warranty up to £4,000. Plus you get 1 free reprogramming if you want to fit the product to another car at a future date.
- GTS Black – The GTS Black is similar to the GTS but offers an engine warranty up to £8,000 and includes a warm-up timer function.
Are tuning chips safe to use?
In short yes. But it is worth reading up on this. If you take advantage of the additional power your car can deliver using a chip, when at full power, your engine will be under additional strain.
It’s worth noting that the chips are designed to keep the power within the safe limits of the engine.
Read more info from RaceChip here for peace of mind.
RaceChip Reviews
The reviews for both the product and the company are fantastic. In fact I actually use a RaceChip product on my car and that’s what encouraged me to start this blog CarTuningChips.co.uk
It’s definitely worth spending a bit of time doing your own research and looking to see if you can find any reviews for RaceChip tuning boxes specifically for the Mercedes-Benz SLK-Class.
Trustpilot is of course a great, reliable source of reviews if you want to see some independent feedback on the company and their chips here.
Installing RaceChip
Installing your RaceChip Tuning box is really simple, in fact the whole process only takes around 15 minutes. RaceChip offers a dedicated section to installation here, https://www.racechip.co.uk/service-support/installation.html but you’ll also get instructions for your chip when you buy it.
There are also lots of installation videos provided by RaceChip here https://www.youtube.com/channel/UCs2yoCLHuI-48FwzI6rn7Sg
YouTube Videos
We’ve also run a search below for you for tuning chips for the Mercedes-Benz SLK-Class.
All that’s left for you to do now, is head over to RaceChip to find the right tuning chip for your Mercedes-Benz SLK-Class. Enjoy the extra power!