I think... its a burn of $$$
but here in Portugal.. they sell "bonalume" DV.. for TDI
I think its Italian.
when.. I still have my VNT17 ... and I toke off the last muffler of my PD150.
it sounds like I had a DV.
in interior of Parking lots... it was "scary"...
pffffiuuuuuuuuuu

ehehehehehehehhe
now with VNT20.. no more pfffffiuuuuuuuuuuuuu... at last no more cops looking strange to my ride.
cheers,
fLAVIO