ummm the nytro wasn't made till 08, did u mistake the year or do u have an apex? i've never had luck with mountainperformance they are well known for bad customer service. You can extend ur nytro on a decent budget. heres what you'll need"
-get a take off nytro mtx 153 track, lots of mtn guys take em off cause the camo extreme is much better, but if ur on budget you can pick up a 153 maverick for dirtcheap, browse around on snowest.
- Rail extensions
-Clutching, i would also advise regearing down to something like a 19t top tooth.
i would reccommend ulmer racing or hartman performance for your clutching needs and rail extensions.
i ride where its steep n' deep :P
06 apex mtn
excell mtn lite exhaust, fox floats on the front, Timbersled lightweight drop brackets
mtn mod seat, timbersled barkbuster front and mtn tamer rear suspensions,simmons gen 2 skis
MMP freedom axle with (3) 9 in. blaze billet wheels,Gravity worx billet lefty throttle, Cr Racing 9" risers
162 2.5 Camo Xtreme track
YAMAHA BABY!