Im not too sure if any of you have read the reports of those cheap ebay intercoolers over on golfmkv.com but it does not look good - issues with installing and quality of product -
its a copy of the forge but they use a different core which looks as cheap as chips, and I doubt will give you very much gain what so ever.
you get what you pay for, and imo its worth paying a few hundred pounds more to get a quality product which has been tested to have proven performance gains.
each to their own but I would not touch it wih a barge pole let alone put it on a £20k plus motor