The reason one might choose the high-performance M40i variant of BMW X4 over the regular versions is because one needs more power and sportier looks. But what if one still isn’t happy? Well, that’s when one has to go aftermarket, and try something like this Dähler BMW X4 M40i which in its full-fat version packs 424 horsepower.
That is what the stage 3 power kit for Dähler BMW X4 M40i delivers, and it corresponds to a 0 to 100 km/h time of 4.5 seconds and a maximum speed of 270 km/h. If that’s too hot for you, the tuner also has a stage 2 kit with 414 hp, and one that is even more “diet” packing 395 hp. The shared features among all these power kits include bespoke ECU software and a stainless steel exhaust system.
Other upgrades you can order with your Dähler BMW X4 M40i include a coil-over suspension system, a high performance braking unit, new wheels and tires, and an aero optimized body kit. The latter is fairly subtle and includes a spoiler lip and a new rear apron with integrated tailpipes. The suspension kit is more elaborate and consists of lowering springs and 18-level rebound and compression adjustable dampers. This, and the 8-piston brakes as well as the 20 or 21 inch wheels will help you make the most of the power upgrade.