Chasing a turbosmart plumb back blow off valve that locks on to the adaptor with 3 allen keys not the new clamp lock type if anyone has one lying around
Cheers
Phil

Found a couple on gumtree that might work for you. The second one down looks to be the pick of the bunch.
 
http://www.gumtree.com.au/s-ad/carramar/other-parts-accessories/blow-off-valves-/1034028139 - Blue turbosmart one in the middle.
 
http://www.gumtree.com.au/s-ad/nowra-hill/engine-engine-parts-transmission/turbosmart-vee-port-blow-off-valve-/1034811503 - Same model as above but looks to be in really good condition.
 
http://www.gumtree.com.au/s-ad/wetherill-park/engine-engine-parts-transmission/turbosmart-vee-port-blow-off-valve/1035873390 - Nasty looking version.
 
http://www.gumtree.com.au/s-ad/salisbury-downs/other-parts-accessories/turbosmart-supersonic-blow-off-valve/1034750232 - may or may not fit depending on model
 
http://www.gumtree.com.au/s-ad/sunshine-coast-region/engine-engine-parts-transmission/turbosmart-blow-off-valve/1035679973 - Looks like it has the bolts on the bottom for attachment

G'day Nick how you going mate thanks for the leeds most of them are not plumb back and the other ones are supersonic spec which you use to be able to buy the plumb back attachment Turbosmart do not support them any more.
Cheers
Phil

Hi Phil,
Yeah I got a bit excited and forgot you wanted plumb back haha.
Gave me something to do at work for a while :)

Looks like turbosmart sell an adapter to go from 38mm with Allen keys to v band clamp.

yes they do I have an early adaptor that's why I am looking for the early BOV
I have just finished a gen 3 conversion on a customers car and I machined up an adaptor
for the newer version 5 BOV it is a fair bit of work just trying to save myself some time.
This is for my new ride no mods mate completely stock a bit of a surprise after my old car
at 324Kw this time I just want a good looking car  that is more road usable than track.
Talk to you later mate
Phil