New to the 1000

I just got my cbr 1000 today. I wanted to know about the flapper mod. Is it OK to take it out or do you pin it down like on my old 954. I didn't take the air box apart let so I don't know what it looks like.

welcome. here's a great link, will help you with the flapper
 
http://www.hooliganbiketech.net/hondacbr1000rrweb/1000RR_frameindex.htm