BMW Commercial: M Performance Parts for the 4 Series Coupe [Video]
However, the M Performance Parts program is not made up of just carbon fibre bits and pieces. It also has engine power upgrade kits that will completely change the feel of your car whilst also keeping the outsides stock, for a sleeper look.
Take the 435i, for example, the most powerful model in the line-up, yet (until the 435d comes out with 313 HP). With the complete works on it, it reaches 450 Nm (332 lb-ft) of torque and 340 HP, whilst looking completely mental!
The M Performance Parts include the front carbon fibre lip, the rear CF boot lid spoiler, M Performance side sills, M Performance wheels, M Performance stripes and on the inside the M Performance steering wheel and a lot of carbon fibre everywhere.
The best thing about these add-ons is that now, BMW is also offering a Limited Slip Differential that will provide pretty useful for those that want to get absolutely everything out of the car. Depending on how well the LSD will sell on the 4er, the Germans confirmed that it might make it on other models too.