APR Performance Carbon Fiber Side Rocker Extensions (FS-603408) 1785 It is the recommended programming

It is the recommended programming device for F-series BMW owners who wish to self-flash their vehicles

This end tank design is a proven winner and is in use on multiple platforms

takes only a few minutes to install

Active Autowerke Performance Software Tuning (16-026) delivers targeted improvements by remapping factory BMW DME tables

APR Performance Carbon Fiber Side Rocker Extensions (FS-603408) 1785 It is the recommended programmingAPR Side Rocker Extensions are the next step to help aerodynamically tune the handling of a car. Made of lightweight and durable carbon fiber composites, APR Side Rocker Extensions help reduce lift at high speeds by preventing air at the sides of the car from rolling underneath the car. The reduced lift helps to stabilize the car during high speed cornering and helps to increase traction for faster lap times. Features: Carbon Fiber Construction All