SKU: 74588998524

RaceChip Tuning For Mercedes Benz CLS550 (C/X218) and ML550 (W166)

$386.10 $429.00
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Ships within 48 hours · Estimated delivery Aug 3 - Aug 8

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Description

RaceChip Tuning For Mercedes Benz CLS550 (C/X218) and ML550 (W166)RaceChip offers advanced chip tuning for the Mercedes Benz CLS550 (C X218) and ML550 (W166) with the 4. 7L V8 engine, enhancing horsepower, torque, and fuel efficiency. These plug and play tuning modules are easy to install and optimize key engine parameters such as fuel injection, turbo boost, and air fuel ratios. The result is a significant performance boost while ensuring engine reliability and safety. Power Gain With GTS Black (+78hp +86tq) Power

RaceChip offers advanced chip tuning for the Mercedes Benz CLS550 (C/X218) and ML550 (W166) with the 4.7L V8 engine, enhancing horsepower, torque, and fuel efficiency. These plug-and-play tuning modules are easy to install and optimize key engine parameters such as fuel injection, turbo boost, and air-fuel ratios. The result is a significant performance boost while ensuring engine reliability and safety.

  • Power Gain With GTS Black (+78hp/+86tq)
  • Power Gain With RS (+65hp/+72tq)
  • Tuning comes with Application
RS GTS Black
6 fine tuning mappings 7 fine tuning mappings
Up to +20% MPG Up to +20% MPG
App control Warm-up timer
Up to 25% more power & torque Up to 30% more power and torque
Engine Protect System Engine Protect System
- App control
Details
The bestseller. A completely new optimization software with enhanced engine-specific adjustments, high-quality hardware as well as a comprehensive service and warranty package will make every driver’s heart beat faster. Next Level Performance for Petrolheads. State-of-the-art for high-performance vehicles. The combination of ultramodern hardware, cutting-edge software and technology (up to 7 analogue and digital channels) plus comprehensive safety and service packages gives petrolheads everything they’ve ever wanted in their own cars. Experience the intense joy of driving on challenging cross-country roads, the thrill of commanding acceleration away from traffic lights or the confidence inspired by ample power on the autobahn - all roads lead to RaceChip GTS Black.
Service & Warranty
3-year product warranty 5-year product warranty
- 2-year engine warranty
(up to 10,000USD for GTS Black, and up to 5,000 for GTS)
- 1x re-programming if you change cars
Hardware
ARM Cortex-M3 processor ARM Cortex-M3 processor
Up to 7 analogue and digital channels Up to 7 analogue and digital channels
Chip electronics with Nano-Protect Chip electronics with Nano-Protect
Pro-grade connector (FCI) Pro-grade connector (FCI)
Ultra-resistant composite housing Ultra-resistant composite housing
Pro fixing system Pro fixing system
Dimensions (mm): L 95 x W 103 x H 36 Dimensions (mm): L 112 x W 111 x H 36
Software
Motor-specific software: v2.0_RS Motor-specific software: v2.0_GTS5Black
In the Box
RaceChip RS
Wiring kit for your engine
360° fixing clips
Stock plug
Fitting instructions
Cable ties		 RaceChip GTS Black
Wiring kit for your engine
360° fixing clips
Stock plug
Fitting instructions
Cable ties
Optional: OBD Dongle


Fitment 

  • 2011-2016 Mercedes ML550 (W166)
  • 2011-2018 Mercedes CLS550 (C218/X218)

An app ahead with RaceChip

As one of the first international chip tuning companies, RaceChip has developed a combination of chip tuning and app. This lets you customize your vehicle's performance characteristics like never before. The combination of chip and app works easily via Bluetooth or your smartphone.

SMART-Features

The newly developed SMART features are the perfect add-on for your GTS 5 Black. The extension makes your tuning even more intelligent & safe and includes a SMART Warm-Up Timer, which activates the tuning based on engine parameters such as oil or water temperature in order to create optimum conditions for increasing performance.

Notice: App control is required.

This is how the installation and increase in performance works

All RaceChip products follow the Plug & Drive principle, i.e. installation can be carried out by yourself in just a few minutes. You will receive installation instructions for your car for all our products and in addition our technical support will be happy to assist you. Once the installation is done, the product can be put to use and you will enjoy the increase in performance.

More power, higher torque, superior pulling power, more powerful acceleration and more agile response: With chip tuning from RaceChip, your car will impress you with its new set of qualities. You make use of the performance potential of your vehicle. RaceChip doesn't just maximize, it optimizes intelligently. This is innovative performance enhancement.

We always operate within the existing capabilities of your engine. That is why we also offer our customers the RaceChip engine warranty with complete confidence. If you have more question, please contact us.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 74588998524

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4.3 ★★★★★
Based on 30 reviews
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Verified Purchase
Just Me!
Fort Morgan, US
★★★★★ 5
Amazing mouse! Real wrist saver.
Color: Purple
I do a lots if computer work. This mouse has really relieved the strain on my wrists and hand. It connects via blue tooth or usb remote. Hold a charge for a long time. I usually charge it at least once a month, but sometime I forget and it still works for two, and use it all day long or leave it on. Easy to adapt to. Too knob adjusts volume. Scroll disc on right side and forward back button on left side.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026
M
Verified Purchase
M Norman
Omaha, US
★★★★★ 5
Easy on the wrist! Cute design!
Color: Purple, Color: Purple
I like it! It’s def helped with work and my wrist is no longer being overextended all day while at my desk! It’s efficient and I love the volume dial!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 7, 2026
D
Verified Purchase
Dog Mom
Birmingham, US
★★★★★ 4
Responsive and very comfortable!
Color: Blue, Color: Blue
My goals for a mouse are productivity and development, not gaming. Overall, I’m a really big fan of this mouse and will be keeping it as a primary mouse. This is my first ergonomic mouse. This mouse fits perfectly in my hand and does not strain my wrist or fingers. It’s extremely comfortable to use. It worked out of the box with no additional software, a huge plus as I need it to be usable with my work laptop. The clicks are not very loud, which is great. The battery lasts a very long time. The little thing I love the most is that it came in a cute color, instead of just the standard white and black. It’s a cute, responsive, comfortable, affordable everyday house with no extra software and confirmations needed for it to work. I love it. That being said, it has things to note. The scroll wheel is very basic, no fancy scroll features unfortunately. It’s not loud, but just basic. The volume scroll wheel is a little high, sometimes I hit it by mistake. Neither of these are big deals. If I could change anything about this mouse, it would be swapping the volume scroll wheel to a horizontal scroll. I have 4 ways to change volume across all my desk devices, but 0 ways to scroll horizontally. Finding a vertical mouse that provides horizontal scroll functionality without additional software is nearly impossible. That feature would make this mouse a favorite for productivity IMO.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 28, 2025
D
Verified Purchase
Dara
Lake Worth, US
★★★★★ 5
Very nice and comfortable!
Color: Pink, Color: Pink
I have carpel tunnel syndrome in both hands, and using a regular mouse hurts my hand. My friend told me to buy an ergonomic mouse, so I said sure. I've never used an ergonomic mouse before or one that is turned on the side like this one. However, I bought this one because of its high ratings. I love this mouse! It's comfortable, easy to use, and has high quality. The color is great too for all of you pink lovers. It comes with a USB cord to charge the mouse. All you need to do to charge it is to attach the cord to your mouse and to your laptop and let it charge. You can also use the mouse while charging it. I read someone else’s review. They said that if the mouse isn’t working or communicating for whatever reason, you can still use it with its USB cord, and the mouse still words. It looks like the company put a lot of thought into making this device, and it’s well worth the cost. I'm glad I bought this; my hands don't hurt anymore, and it’s super unique. When I started using this mouse, it took a little time to get used to using it on its side. I couldn’t fully wrap my hand around it, but I’m getting more used to it and it feels great on my hand. The thumb buttons are for going back to the previous page you were on, or going forward to the next page. The button on the very top of the mouse is for the volume. You can also press it down, but I honestly don’t remember what that part is for. The other side of it is the left and right clicks with the scroll wheel. There’s another button above the scroll wheel also called the DPI button that allows you to quickly adjust the mouse sensitivity. You will also find the charging port on the lower part of the mouse where it divides, and there are several other buttons and the USB receiver on under the mouse for connecting the mouse t to your computer. A user manual comes with this device that guides you through the setup. Shipping was on time and packaged nicely. I give this a 5/5 and recommend this product.
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Reviewed in the United States on November 19, 2024
P
Verified Purchase
Priscila
Birmingham, US
★★★★★ 5
Love it! And... it can be remapped!!!
Color: Purple
Love it!! I'm a Mac user and it's been wonderful. Zero connectivity issues. The size is perfect too, my hand is like 7.5inches I think, and it was just right. What knocked it out of the park is that I was able to get the buttons remapped with Karabiner-Elements, so now I have custom shortcut buttons!!! I also read on Reddit that it can be remapped with AutoHotKey for Windows ;) It's ergonomic, responsive and quiet, and it works great with Bluetooth. Being able to remap it has made it the most perfect and affordable vertical mouse. Hope it lasts forever, we'll see how it holds up over time!
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Reviewed in the United States on April 20, 2026

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