Both machines being stock, do I have anything to be worried about in a 1/4 mile race and top end? I've got the ZRT of course

No, you should not have any problems, those XLT's stand for eXtra Large Turds!!!!! *Ride on!!!!!

Whom that's funny i thought that XLT stood for "EXTRA LAZY TRIPLE". *You should kick it's @%#. If you don't i would run off some where and cry......alone.(lol) http://www.snowmobileworld.com/forums/iB_html/non-cgi/emoticons/biggrin.gif

Since the XLT omly has 97 hp and the zert has about 120 to 125 hp you don,t have anything to worry about if both are stock but if he has pipes and heads be careful as this sled flys with these modifications and it will make a little over 125 hp and the fact that this sled is lighter than the zert you might have a challenge on your hands.

Zrt600 by 20 sled lengths by the 1320' mark http://www.snowmobileworld.com/forums/iB_html/non-cgi/emoticons/wow.gif