i've added quite a few pieces to the bike since i bought it stock, i had a fully built honda rc51 previous to the ktm and parted that one out to build the rc8. here's a breakdown of parts and pics of what i've done so far...
billet brembo 19x16 brake master cylinder with folding lever, also a euro racing adjustable quick turn throttle
billet brembo 16x18 clutch master with folding lever
sato rearsets with shift spindle stabilizer (no more false neutrals or mis-shifts), and gp shift plate, oberon billet clutch slave cylinder with billet aluminum backing plate (isntead of oem plastic piece), and kls quickshifter
ohlins fgrt812 forks, brembo billet hp calipers, braketech axis ceramic matrix composite rotors and bst carbon front wheel. (the bst and cmc combo weighs in at 5.5 lbs less than the oem machesini and stock rotors)
braketech axis cast iron rear rotor, brembo hp billet rear caliper, and bst carbon rear wheel
akrapovic evo 4 full system with the rest of the clubkit installed (cam timing, air filter, map and thin headgaskets). this system didn't have a baffle option so i had a few different sized baffles built and drilled my pipe to bolt them in.
ohlins ttx36 rear shock
i've also replaced the soft wp steering damper with an ohlins unit and installed a yoyodyne slipper clutch (i prefer yoyodyne's design because they use coil springs instead of spiders and seem to be much less finicky than other units). the bike also has a did erv3 520 chain with 16/39 gearing