Join Date: May 2012
Location: Northern Colorado
Welcome to the forum!
What do you have as far as the housing for the K&N filter? If it's a pro Design or Monster then that is a good set up. As far as getting the FCI it depends on what you plan on doing for the build. If all you do is trails, stick with what you have as long as it is the bigger size filter, not stock size. If you are a dune guy where you are in the top end of the motor, then an FCI will shine.
Before you do that TB upgrade I suggest getting a bigger piston to help move the air. Even at that point I wouldn't bother unless you ported the head, again, move the air. Then get your TB to let the air flow.
Answer back and we will go from there.
[U]2006 raptor 700
DMC Force 4's, FCI W/box, Dynatek Fusion,
CP 11:1 piston, BaMotorsports porting, HC3
YFZ 450 fronts & reworked rear by JOGACA
Trailtech 1 1/8 xbar w/vapor dash & Vapor installed
ODI Rogue grips & ASV pro pack levers
Fastway steering stabilizer
PM me if you need service manuals