Stewart Warner. Mine did not read the same as my AEM Map sensor though. It leads by about 2psi. When the car was stock though, the SW gauge was dead on with the dyno hook-up. It always has been very accurate. Looks much nicer than that Autometer crap IMO.

 

just to throw out a question?

Anyone have a review of the Greddy boost gauge? I'm considering getting one based soley on looks alone.

 

I had a question on the Stewart Warner Gauge, should I get the one that goes to 25 or 40 psi?
edit: Prob. 25, I don't plan on boosting very high in future, if that does happen then I will get a different gauge.

 

I use this piece of **** that is actually dead on. It is a perfect knock off of the Defi's. The only downer was the fittings needed to be welded for my needs. I also have my tt as a gauge b/c it records peak boost.
http://cgi.ebay.com/ebaymotors/UNIVE...QQcmdZViewItem

 

autometer is the cheapest.

If you want made in Japan, there's the Defi D series and the HKS and Apexi entry level EL glow...looks like of rice, but I got one anyways cuz i'm cheap.

Defi D doesn't glow, it prob looks the best.