Guys.. my stepdads owns a exhaust business and you can get a pressure pack heat restant (big 14 hour day i can't spell?? i think.. :D ) paint for your extactors, but make sure you clean them very well. I maen REALLY well other wise its a waste of your time, the paint will come straight off.
don't use that glass/tape shit. it'll just screw your extractors right up. they will crack and break quickly..
i used a pressure pack paint on my engine bay and it seemed to work quite well. again make sure its very clean. only problem... there was a different colour betweel the pressure pack and the drum i bought for the rest of my car. prob the mixers fault. I'm not worried i like the outside better than the bay.
jamie