Originally Posted by Guard Dad

The info that I've seen indicates that the Tru-cool units don't transfer heat as well as the units from Z-1 and Stillen, consequently you would need a bigger cooler to get the same results. I've been checking out coolers on-line and I've decided (just my opinion) that right now Z-1 Motorsports has the best kit for joe-average because it seems to have the cleanest installation and is composed of quality parts. The Stillen kit is very good as well and if they had a sale or promotion going I would consider it too.