Moin Moin, I just bought a Kia Stinger BJ 2021. However, he only has the standart exhaust system and I would like to have it retrofitted by Bastuck. The system for the Stinger is a flap system that opens from 70km/h and also has a remote control, with which you can open manually (if you are e.g. on the race track or not in Germany is of course only). Now to my question: Is it really a MUST that the flaps have to be controlled via the manufacturer remote control? O in 2025 there is not also a possibility to replace the remote processing with the smartphone? A control over the smartphone would be VIEL better than the dubious FB constantly flying around in the car and possibly to get any accusations at a control if someone discovers them. Does anyone have experience with it? Is there a possibility to let the control of the FB take over from the smartphone or can one possibly an additional module on the flap control bast before the installation Is this possible? I would buy this facility:https://www.sportauspuff-versand.de/…pe-endrohr-rund-v6-esd.html?… Or is there possibly a better and or equally good but cheaper facility that I should take? and since I can only pick up the Stinger from the dealer on 21.03., I would like to have it installed directly by him before collection. I look forward to your information and many thanks already in advance!