The initial list looks pretty good, but suggest that we break it down by category instead of manufacturer (ie. exhaust, steering & controls, suspension,...), so that as folks are looking for specific areas to upgrade, they look in a specific part of the list. Also available:
ITP 10" diameter aliminum wheels (get away from the odd-ball 11" stock wheel)
HiPer Technology carbon fiber wheels (see CF1R)
Houser steering stem
Houser extended a-arms
Houser bar clamps (standard and oversize)
Fasst Company Flexx Bars
WeaponMX headers
WeaponMX silencers (in aluminum and carbon fiber)
No-Toil high volume air filters
*****
In this pic of aftermarket parts... ITP wheels and tires, WeaponMX carbon fiber silencer and full exhaust, AC racing nerf bars (powdercoat in white). And yes, the seat is blue.