Originally Posted by dave6253
gt, They are CF Neptunes. I know nothing about them, except they were on the bike when I bought it. I was the 3rd owner, so the guy I bought it from didn't know much about them either. It appears they are made in New Zealand and possibly were carried by Adventures Workshop at one point. They sound sweet. Not terribly loud, but deep. I haven't had the bike on a dyno and haven't yet played around with TuneECU. I haven't seen another 990 with them.
thanks Dave - appreciate the info and extra Neptune
pics on your bike - love the CF, looks super sharp
with the all black 990...