Any input on sources for an air/water intercoolers? So far Ive found Frozenboost for complete (fully welded/assembled) units, and Garrett has exchanger cores that require full fabrication of both air and water sides. The EBAY ads I've seen have the exact same description as the frozenboost, so I would think its the same company or someone reselling them.

Frozenboost has really good prices, but not sure about the quality. Does anyone have one they can comment on?

The Garrett cores I assume to be great quality, but are much more money and will require lots of time and welding to get to a usable point.