I am getting some LS1 fans this week, and I wasn't sure on where to get a VSC (variable speed controller). There is a flex-a-lite VSC like the one in this article: LS1 Fan Install but i'm not sure where to get it.

The reason I don't want to hardwire it to the PCM is because it is my daily driver, so when I have to send my computer off to be re-tuned I use my stock computer and I would like the fans to work all the time, not just when my tuned PCM is in.

Any help is appreciated! Thanks!