Seymour Duncan STHR-1B BLK

The Seymour Duncan STHR-1B is a single-coil-sized humbucker usable on the bridge position of a Telecaster guitar. As the average Telecaster relies on their twang and single-coil-sound, putting this one in will have a huge impact on what you are used to.
I use this pickup in a Fender Baja Tele. The main intention was to fatten up the rhythm sounds to be more broad and in the mid/bass tonality (imagine some stoner rock sound). For this intention, the pickus is totally fitting. You can make your Tele sound more like a Junior Paula with lots of gain and a fat, kind of muffled sound (compared to the Fender single coils). When active together with the neck PU, the Seymour Duncan tends to dominate the sound and kill the sparkly treble of the neck PU. Also you won't get any noticeable twang feel out of it (at least in higher gain).
The pickups itself are of high quality and seem very well fabricated.
What you can expect is a fat sound you wouldn't have imagend possible out of a Tele.
What you shouldn't expect is the definition you had before (if your tele had decent pickups), in higher gain it tends to be muffled.