trust me i am serious about drag racing, that is what i bought the bike for, i will start racing it in the pmra this year. Sorry i didnt mention but i do have adjustable lowering link. its going to be in a bracket racing class so the extensions will be to make the bike more consistant. dont come back and tell me that i can be consistant on the stock arm, i know i can. but can anyone really say that extensions would make you less consistant NO!! i raced a 2000 zx9r last year and this bike is much harder to get off the line than the 9. i cant leave as hard as i would want to on the stock arm, When i tried it just came up on me. i was leaving at about 6000 rpm slipping the cluch out the hole and giving more gas at the same time, trust me i know how to launch a bike and i know my best bet is seat time. i just want to know what you guys think it would do with a 6 inch strech!!