What I did on my Rav4 awhile back ago is I purchased sheets of real carbon fiber, then cut out the shape of it and literally laid it on top. It already came with 3M tape, so it stuck on well and no funny edges. You do have to sand the edges a bit though so you can get a softer feel to it. Takes awhile b/c sanding as you might know, takes off the clear coat and you're left with bare real carbon fiber which can prick you hands if you don't finish it off well. If you get a sheet thin enough and cut it right, it will hug the pillars so tight that it won't even matter.