I bought these pickups to replace the stock epiphone humbuckers in my SG pro G400. I like the pickups that were in that guitar but with the style of music I am playing, I found that they did't cut through or even hold a compressed volume level similar to that of my EMG equipped Telecaster (EMG 81 in the bridge, single pup). Installation was simple and painless, only thing I had trouble with was finding t a space for the 9V battery, with a little creativity and some tape though, it sits in the cavity totally fine.
Would highly recommend these pickups to anyone who is getting into the world of heavy metal playing with high gain as these will offer a clean, even sound with a bit of a volume bump on any passive pickups that they may already be using. These also handle cleans amazingly and if you are recording through an amp sim, active pickups with their naturally more compressed signal actually work as great DI tracking options. I can also recommend these to anyone who wants to get themselves into the world of modding their instrument, this is a solder-less installation (if you opt for the EMG toggle switch as an extra, which is NOT included in the main package), it's a great way to make your instrument feel even more like a bespoke musicians tool.
If you are ordering these though - have a note of the length of your routes in the guitar itself, I ended up ordering these again (I know, fanboy) for my explorer and required the 15" battery connection cable as a secondary purchase, take a note of that and plan your instrument before purchasing these or any replacement electronics for your instrument.