yeah it sucks mate when then mistakenly get you for someone else's wrong doing
as harsh as it may sound
you shouldnt have had a aftermarket BOV in there in the first place
and its not hard to change BOV's without breaking stuff
as i have done mine plenty of times
goodluck with getting a stocko BOV....there are plently on ebay
for like a couple of bucks
The only reason i am saying this is cause i used to have a aftermarket BOV
and apart from the wank factor and major cop attraction they aint any good