Right, I thought I would be bold and order the high level conversion pipes from Banditmania (at the pricely sum of £50). They arrived the following week, got straight to it. Problem is that the length of the H/L link pipe makes the exhaust either stick straight up in the air or off the back (i.e. past the light cluster, which did look naughty

!) Then the hanger supplied was the completely wrong size and the holes were not it the same place the foot pegs were!

Any way i secured it with some string etc. Started her up and it was awful, wouldn't rev properly etc. I checked all the fittings and was happy they were all secure! Anyway it is off now, and I have a semi H/L exhaust now using the original link pipe! My conclusion is that the pipe is the wrong length and in turn messes everthing up, so don't buy one! I will be checking with Bandit mania to get my money back as it clearly states the the pipes are suitable "for SV650 all years".
Anyway just thought I would let peeps know, because there have been a few posts about this pipe work in the past!