Have you got a price on these kits and pics, I've had a look on your site but can't see them.Sometimes I wonder if people are just being brand snobs!
I've always been one for doing things properly, but at the lowest cost possible.
The company that make our intercoolers in the UK had one of our "ebay" cores to test last month.
He was completely shocked at the results... It had less pressure drop that the core he uses (which costs 4x as much) and in cooling terms was 2deg different - which he openly said could have been due to not being able to test both cores side by side at exactly the same time.
Steve - why did you hate the Autobahn Core?