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Mark Hendrikx - Automotive engineer at Mosselman

Expert's advice:

Developing the best possible ECU remap (chiptuning) for a car requires time and intimate knowledge of the vehicle you’re tuning. In order to provide high quality ECU remaps, our mappings are developed exclusively for BMW and MINI cars. Before we add an ECU remap to our line-up, we make sure it’s tested thoroughly on our dyno. Our software is engineered to create a smooth power delivery that keeps going till the redline, without putting your engine at risk. Besides that our Stage 2 and Stage 3 software are designed to get the most out of our Mosselman high-end performance parts. 

Mark Hendrikx - Automotive engineer at Mosselman

Performance gains per stage

For your BMW X6 35d E71 286hp

Series stock performance: 286hp | 580Nm | 210kW* * based on manufacturer supplied data

Chiptuning, BMW Exx M57

Excluding sales tax

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Article number:


BMW X6 35d E71 TUNING.

Tuning a car is a delicate thing. Whether it’s an ECU remap, a new turbo or a full-on stage three tuning, you need to make sure each component is working at optimal efficiency under careful supervision of a sufficiently smart engine management system. After all, you’re looking to create a symphony and that’s hard to do when one of the instruments is off. That’s why all of our products are designed and built in-house. Professional tuning requires a steady hand and we want to be solely responsible for getting the most out of your car.

Because most modern engines are heavily restricted due to emission regulations, an ECU remap or installation of an engine control unit is always the first step towards unlocking the performance your BMW or Mini is capable of. However, as our name implies, we do have upgraded turbos, should you be in the market for one. In addition, Mosselman Turbo Systems offers more efficient intake and exhaust systems, oil thermostats, oil coolers, and intercoolers. So if you’re looking for more performance, you’ve come to the right place.

MOSSELMAN tuning experiences

  • Anders M.

    With Mosselmans' performance package I exceeded even more than the company advertised on their website! The information sharing process was easy and hassle-free. Excellent customer service from Leon and his team!

    Anders M.

  • Thom H.

    Mosselman tuned my BMW 318d today. What a result, it became a completely different car! Very professional company and friendly staff. This was my second car here and again they have exceeded my expectations. Thanks!

    Thom H.

  • Rob M.

    Very happy with my improved car, the car reacts better on the throttle and is very direct. Also, the exhaust sounds better!

    Rob M.

  • Bas H.

    Visited Mosselman on May 24th for the chip tuning of my 135i, great result! The adjustment is great, when will you post the photo on FB :)?

    Bas H.

  • Romke B.

    After 1,5 years still very happy with my iTronic. By far the best upgrade I could have done with my BMW 340i.

    Romke B.

Do you have a question?

Please take a look at our FAQ for the most commonly-asked questions, or feel free to contact us.

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When we talk about chiptuning a car (remap), we mean that we adjust the software of your BMW or Mini. This allows us to change the parameters of the engine management system, for an example the fuel injection system, ignition and turbo pressure. We always stay within the limits of the engine, which allows you to enjoy maximum performance under safe engine conditions.

Mosselman Turbo Systems has been the expert in BMW and Mini tuning for over 40 years. Due to our experience and expertise we know exactly how far we can go when we chiptune a car. Over the years we’ve constantly developed and thoroughly tested of our software mappings. We believe it’s very important that our software and performance products don’t have negative impact on the reliability of a car. That’s why made sure every upgrade we perform is completely safe and does not harm the car or it’s engine, if driven under normal conditions.

The fuel consumption after chip tuning will be a bit lower, if driven under normal circumstances. However, if you have more power and torque you will probably use it and this will increase the fuel consumption. You can save fuel with our chip tuning, but it all comes down to how good you are in controlling your right foot.

No, we don’t offer warranty on the engine after buying our chip tuning. We don’t do this because we don’t know how what happened with the car and engine before the chip tuning. Before we start with the tuning we will always read the ECU for fault codes and check the engine visually for possible problems. Due to our experience and expertise we know exactly how far we can go when we chiptune a car. We always stay within the limits of the engine, which allows you to enjoy maximum performance under safe engine conditions.

Chip tuning your car will take approximate 3-4 hours, including optional dyno runs. We have a waiting area with some magazines and coffee to make the waiting comfortable. 

BMW X6 35d E71 286hp tuning possibilities

Check the performance gains