The German tuning firm TechTec has released several upgrades for the BMW 1-Series M coupe. At the highest stage, the car can produce up to 450 PS, however the tuners started off with the intial package boosting it 40 horsepower for €1,500. This results in 380 PS and 580 Nm of torque. If you want to hand over some more money, then for €2,500 the BMW 1-Series will produce 400 PS, but if your going that far you should just have the car maxed out. With an additional €800, TechTec adds a new air cooler and fine tunes the ECU to produce 450 PS and 630 Nm of torque.