This suggests something more than a plug and play tuning box Hamman – One of the most respected tuning names, no specific details as to how their product connects to the engine but their product range includes top speed limit removal.VR Tuned – Plug and play tuning box solution for the M4 using the basic camshaft sensor and MAP sensors.Active Autowerk – Plug and play tuning solution, Active go further than the other manufacturers on this page excluding Burger in that the feature the installation instructions on their website.No product photos at the time of going to press but it is a plug and play tuning solution for the M4
Hex Tuning by VF – VF made their name making ultra reliable supercharger kits, Hex Tuning is their foray in to the chip tuning industry.A tuning box solution that goes many steps further than your normal tuning box.