So I just bought a 00' silver frost SVT and its 100% bone stock. I have A LOT of money to put into it now and would like to do bolt-ons before I go with a 3L hybrid swap. So if you would give me some imput on these:

1)K&N 3530 w/ adapter
2)ADP udp
3)UDP alt and p/s
4)WR headers/ y-pipe
5)Tru-bendz hi-flow Cat
6)Zex Nitrous kit (do I get a dry or wet system? Any part #s?)
7)SCT X-caliber II (any imputs on where I should get it from?)
8)Fidanza flywheel
9)ES poly motor and trans mount inserts
10) MAYBE a cat-back (any advice on which one?)

Thanks for any imput you guys can give me. I have some questions about suspension but I know where to post those...thanks