how do these reeds and cages perform and how is the horsepower increase on a 2003 XC 700.

I know they work on the mxz 800. Really cleans up the throttle responce. To give you a example, Panteraone had them in his sled and when we raced ( both mxz800) he was a sled and a half or two ahead of me. We then went and took out the v force and we went and raced again we were even. I think its the next goodie I buy for my sled.

on the dyno on a tripple cat motor they didn't make any more hp than the 2's

crboin tech makes some good reeds for the 700 twice as good as vforce go to www.carbontech.com I have a brand new set in the case yet if interested email me at snwpro@hotmail.com

already ordered them

I work for a Polaris, and Ski-Doo dealer and I hear they work very well on the Ski-Doo's. (Ski-Doo even uses them stock on thier MXZx 440 race sleds) I have heard that they really don't do much for the domestic twins. I have heard the SLP boost bottles really give the Polaris twins much better low to midrange snap. The SLP boost bottles are half the cost also. Good luck,
Rich

vforce sucks they break all the time