The chrome trim is easy to install. It's self adhesive and can be cut to any desired length.
I've found that it's best not to cut too long, just a cm or 2 behind the bumper or quarter panel trim is sufficient.
Clean the bumper with white spirit or alcohol to remove silicones, then I use a hair dryer to dry it off, you luckier ones in the sunnier climates may be able to avoid this.
I also use the hair dryer to warm up the adhesive on the trim.
Then peel off the red backing tape and apply by pushing a little behind the bumper and continuing around the section being trimmed.