Diffuser isn't shorter. It bolts right up to the msport bumper BUT there is a part that you will need to trim off for it to fit. There is a bracket that holds the comfort access sensors that needs to be cut off and relocate the sensors. The bracket is right in the center behind the diffuser.
2014 LCI 550i M Sport | 3D Design Front Spoiler | BMW Performance Black Grills | BMW Performance Trunk Lip | BMW Performance Diffuser | Painted Reflectors | Wincos 30% Tint | Supersprint Exhaust | ACSSprings | MORR VS8.2 Rims 20x10R and 20x9F | Michelin PSS Tires |||More Photos of my car here|||