Kelleners Sport has already done a package for the 2011 BMW 5 Series, but here’s a more complete version of it for the 5er with M Sport kit, which besides the 535i also tunes the 520d model. These new cars will debut at the forthcoming Geneva Motor Show.

Kelleners promises 20 per cent more engine power for petrol and diesel. For the petrol powered 5s5i the output has gone up from 306 hp (225 kW) to 367 hp (270 kW) with maximum torque increasing from 400 to 480 Newton metres. Meanwhile the 520d diesel gets a hike from 184 hp (135kW) to 218 hp (160 kW) with the torque bumping from 380 Newton metres to 450.

Even though these new models are based on the M sport package 5er, Kelleners provides their own unique touches like the mesh grille, or the surrounds or the rear diffuser and oval tailpipes plus the rear spoiler. They also get 9×20 inch rims at the front and 10×20 inch at the rear, wrapped in high performance tyres in sizes 255/35 and285/30.

For the interior you can expect pedals and footrests made of polished aluminium as well as a set of real velour black floor mats carrying the tuner’s logo, plus midnight black leather upholstery with white stitching.