1.) Shifter
2.) Adjustable Clutch Quadrant
3.) Gears
4.) Full exhaust
5.) CAI, TB and Plenum
6.) Underdrive Pullies / Timing Adjustor
7.) Suspension.....LCAs, UCAs, SFCs, springs,struts, etc
8.) Port + Polish Heads
9.) Cams
That should give you a good start ;)