I just learned how to double clutch last night. I must say, it does feel like you're going faster. But I came to think, would my RPM be there if I'm not double clutching, or does double clutching really make you faster? It certainly feels faster, and sounds pretty cool. what permanent damage can be done though? I'm guessing it's all stuff involving your gears, flywheel, etc. My other friend with his Civic does it all the time, and says nothings wrong with his car...and he's been running it hard for about 3 years (everywhere he goes, yes, he is the definition of Rice-Boy).