Just enough of a difference for me, and a very simple install. Slips right into place, just like the non-PP splitter, and uses all of the same hardware.
Not road racing and want a very cool looking appearance mod for WAY less money? These are like no other caliper cover I've ever seen. The quality is amazing, the finish is flawless, and the fitment is perfect.
And like I've said in other threads: I need my Performance Pack wing to hold down the rear of my car as badly as I need 6-piston brakes up front to stop. These covers are a great alternative to the real thing!
And the proof is in the pudding: I've told multiple people I work with (that are into muscle cars) that I've upgraded to the big brake package. They go out to look at the car and when I ultimately tell them that they are really only covers, they are in disbelief.
One of the rear covers installed:
Front with the wheel installed:
Comparison to a real Brembo caliper on the showroom floor:
Like most things, this picture doesn't do them justice. Much better looking in person: