agree with above comments mate,
don't touch cheap chips !!!
I've got a Power Engineering Stage 1 chip on ebay at the mo, but didn't look at pricing before posting so I've had no interest.
Anyway it's a good chip and only removed due to a new 330 hot off the press Paul Hills item. If your interested in the PE chip it's yours for £50 incl postage, drop me a pm if you are.
Paul