Early days, yet. We all know cold air is more dense than warm air but some might argue that there's little point in putting cooler air back into a red hot turbo but every little helps. The DV is slightly louder which some people like but not massively. Besides, I damaged my second intercooler to inlet manifold pipe and needed a replacement. If nothing else though, I'm trying to tidy my engine bay after seeing some of the fine examples at this years Inters and I think this mod looks cool.