1. Trying to buy a spark plug for my R6 is a bitch - last resort was to go to the dealership and they were charging $18 for one!! told 'em to shove it (in my head)
2. OEM air filter was freakin' expensive - still ended up buying it :-(
BTW - i have a question for you more technically inclined lads. when i was replacing the air filter i decided to look at the throttle bodies (i assume that what i holes are calling :-) ) there was a bit of black greasy residue (not a whole lot) which i cleaned out. I dont think it's normal but then i just started learning about the bikes so perhaps someone can let me know.