Just fitted the Ducati Performance Race Manifold, (ok, so it's a cat bypass then). Looks good. Really good.
Remus Revolution pipes due any day to finish it off nicely.
I've owned this bike a week so far and i've got the serious accessorising bug:
DP hugger
DP alu filler cap
DP carbon belt covers
DP cat bypass
Remus cans.
Ventura luggage.
I caught myself looking at performance engine bits earlier too.