Mercedes-AMG Stage 1, 2 & 3 – Which tuning stage really makes sense?

If you want to get the most out of your Mercedes-AMG, you can't avoid professional chip tuning. But which tuning level is the right one? Many providers throw out terms...
Stefan Jevtic

VMAX removal at Mercedes-AMG – How to unlock the top speed

Mercedes-AMG vehicles are known for their high performance - but many models are electronically limited to a top speed of 250 km/h as standard. Some models with the AMG Driver's...
Stefan Jevtic

Vmax cancellation on the Opel Rocks-e – More driving dynamics through optimized software

The Opel Rocks-e is an innovative, fully electric light vehicle with the latest technology. However, the top speed is electronically limited as standard. This limitation is based on the vehicle's...
Stefan Jevtic

Chiptuning is not just chiptuning – Why Stefanel Performance has real OEM experience

Chip tuning is a craft that requires technical know-how and in-depth experience. But the market is full of providers who believe they can professionally optimize a control unit after a...
Stefan Jevtic

Chiptuning with original hardware – Why manufacturer tools are superior

Many tuners work with cheap cloning tools or unsafe OBD interfaces to carry out chip tuning. But this carries risks: failed programming, damaged control units or unstable software are the...
Stefan Jevtic

Why % tuning is nonsense not only in injection but also in boost pressure

Many tuners rely on the "simple" method of chip tuning: they simply increase all values ​​by a certain percentage . Torque +20%, injection +15%, boost pressure +25% - but this...
Stefan Jevtic

Why cheap Stage 1 tuning can overheat your engine

Stage 1 tuning is supposed to provide more power and better responsiveness - but many cheap providers rely on questionable methods that can overheat your engine in the long term.❌...
Stefan Jevtic

Why most DSG & automatic optimizations are flawed

Many vehicle owners would like to improve the shifting performance of their automatic or DSG transmission. But what many do not know is that most TCU optimizations (transmission control units)...
Stefan Jevtic

Knocking engines due to bad tuning – Why incorrect ignition maps cause long-term damage

A powerful chip tuning should make the engine more efficient - but many bad tuning files lead to dangerous knocking noises instead. This is because insufficiently optimized ignition maps thermally...
Stefan Jevtic

Torque lies – Why many suppliers sell false performance values

“+100 HP & +200 Nm torque!” – This is what many chip tuning providers promise. But what is really behind it? The fact is: many providers deliberately give false performance...
Stefan Jevtic

Fake chip tuning – Why many providers only need 10 minutes and you get nothing out of it

Chip tuning means precisely adjusting the control units of a vehicle for higher performance and efficiency. But what many customers don't know is that many providers can "tune" your car...
Stefan Jevtic

Why many chip tuning tools only do half the job – The truth about cheap interfaces

More and more vehicle owners want to optimize their cars - but many of them resort to cheap chip tuning interfaces that are sold in online shops for little money....
Stefan Jevtic