Adding our Tune Pedal P13702, on your petrol 523i 211 hp will make your engine responds more spontaneously and more directly. This throttle tuning system optimizes the response time of your engine by eliminating the latency . The result is that the power of your engine is released faster. This way your acceleration is much more direct. This pedal box is ideal to pass vehicles easily.
I am very satisfied with the TuningBox Fusion, this optimization pack is really prodigious! Serious and very professional company.
I would recomend to have whats app, sometimes I need to talk online and its easir than emails
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.
Great webshop, very good communication, fast shipping, good packaging. But never understood why the Fusion range are only available to some cars - and not mine (2009 Peugeot 407 sw 2.7 hdi).
Great Service, keep as it is and no improvements needed
Hi. I tried many times over Xmas/new year to ring and chat with a person to avail. If this company Cannot contact people over this period let us know. I hope thIs product works. ***