The S-Deluxe Chunky bridge pickup is a more muscular version of the S-Deluxe bridge pickup that offers a fatter, more lead-friendly tone in the bridge position.  Due to the incredible sensitivity of S-Deluxe pickups, a wide range of tones and output levels are available simply by adjusting the distance of the pickup from the strings.

All S-Deluxe pickups are designed to fit standard Strat body routs with no modifications to the instrument.  S-Deluxe pickups use high-quality 4-conductor shielded cable to allow for any possible wiring combination, and are supplied with treble bleed and tone capacitors, mounting screws and wiring diagrams.

https://jbepickups.com/products/sdlx-s-style-pickups/