Thanks to our Tuning Box Evolution 5078 powerchip , your Bmw Serie 4 will have more power (+34 hp) and more dynamism (+70 Nm). Your petrol 420i 163 hp engine will have a total power of 197 hp* and a torque of 340 Nm*. Moreover, your fuel consumption will decrease by around -1L./100km*.
Tuning Box offers a 2-year engine warranty with this ECU tuning box.
Your engine with our Tune Pedal P13702 responds more spontaneously and more directly. This pedal box optimizes your engine response time by eliminating the latency . The result is that the power of your engine is released faster. This way your acceleration is much more direct.Read more
The Tuning Box Fusion is the combination of these two chiptuning units. This wonderful product provides an amazing driving experience and great performance. You will not recognize your Bmw Serie 4 anymore!
These plug-and-play performance chips especially developed for this petrol 420i 163 hp engine work as a custom engine reprogramming. Thanks to the supplied AMP plugs, these chiptuning units can be easily connected and they scrupulously respect the power reserves and motor protection systems of the german manufacturer.
I would like to see an improvement in shipping because it got delayed twice
I am very satisfied with the TuningBox Fusion, this optimization pack is really prodigious! Serious and very professional company.
Everything is working fine.
Great Service, keep as it is and no improvements needed
Instructions for DIY installation should be more detailled and specific for every single car model. Simple things as intake air filter position makes wiring more difficult in my fabia than in volks.