I went with the RJC IC-325. I was originally going to install the Precision SLIC but my car is lowered a couple to 3" & I was concerned about the lack of ground clearance. The RJC unit fit perfect & is overkill for what I have right now but it drives fine. Here is a post about my cooler. http://www.turbobuick.com/forums/threads/anyone-have-an-rjc-fmic.369426/
The RJC unit is manufactured in the USA vs. being imported. That is important to me. I want American made parts as much as possible.
It now has an upgraded bottom end, forged pistons, arp studs throughout, billet main caps and a 67mm billet turbo. It still has the russ merrit ported heads and intake, hydraulic roller cam, and fast xfi