Manifold- Cat Clamp

Hello guys,

fitted my miltek de cat yesterday and I think its blowing on the join between the manifold and the decat pipe. Im pretty sure its caused by the clamp that holds them together.. as its about as useful as a chocolate teapot...

I was doing a bit of research today and stumbled across this...
http://www.ebay.co.uk/itm/Renault-C...arts_Vehicles_CarParts_SM&hash=item417cb512d0

surely this would do a much better job.... was wondering if any of you have tried it?

CheeRS