As the title states, which brand Boost Gauge is the best? I'm leaning towards AEM analog since I already got the UEGO analog. Than again I see a lot of people with Defi. Would it make any difference between AEM and Defi?

 

I use a STRI it is dead on with my EVOSCAN. Plus it has a peak and hold feature which is really nice. Works great for me.

AEM, DEFI, will all work well. I think the AEM analog is the least proven.

 

The one that is the best for tuning

/joke

There is no best, there is only personal preference. Quality control is better with the bigger brands, but most of the smaller brands work just fine.

Really, its just a boost gauge, log your MAP sensor if you need an accurate source of boost information.