Exhaustpipe

well, the koenigsite says for the 360 modena:

KOENIG-Sport exhaust 6-pipes
complete stainless steel, polished, 6 end pipes 80 mm diameter, handmade, very good sound, powerincrease € 3.900,–

KOENIG-Sport exhaust 6-pipes
like above, but with bypass-valves € 4.700,–

I have no idea how fast these things wear or how fast they depreciate so I can't help you with that. Just giving some info (you probably already looked it up yourself)

Is it the one with the by-pass value? The 360 has this so after so many RPMs (I forget the exact number) you get a strait through flow. That is very important. I would pay 3,800-4,000 for it.