Regina, I'm seriously considering doing it to mine, since mine has more angle than your normal N1 style exhaust, and mine actually rubs on the lower lip of the bumper support and is resting against where the bumper curves down back under the car, and it's making noises and melting the bumper as well as keeping my rear bumper covered in a nice thick coat of soot from my backfiring and such....luckily the black bumper hides it well.

I have aluminum flashing that I used to make a little heat barrier around my brake reservoir (though it doesn't really get that hot compared to alot of setups i've seen), thinking of using some rivets on the back there. It will look similar to Taylor's old blue S13, but i might paint it hi-temp black to keep it from sticking out. On your car, you could get by with an 'aluminum' look...or maybe i can spray a piece with the gunmetal gray paint i have and see how well it matches your bottom tone.