I use a HKS SSQV BOV, but I don't recirculate it because I'm building for show. Lots of other people have recirculated it with this same BOV, though. All you have to do is get a rubber radiator hose and shove it on the end of its cone. Then get a pipe welded onto your intake pipe that aims toward the compressor inlet that will fit the radiator hose. I've seen people use clear vinyl tubing, but it turns brown over time.

There's already a Yahoo group dedicated to water injection. Loads of info. http://autos.groups.yahoo.com/group/...ter_injection/

Here's a user testimony: http://www.syclone.freeserve.co.uk/waterinjection.htm

Here's a DIY page from a guy that needs web design lessons: http://users.frii.com/maphill/wi.html

Here's a page with a URL that makes you go, "now why didn't I just type that into my browser and see what comes up": http://waterinjection.info/

and of course, the Aquamist company's site itself where you can pick from many pre-manufactured kits... : http://www.aquamist.co.uk/

:thumbup: