S&S Starter Boost Relay. Fits Big Twin & Sportster 1980-2021.

Description

Features & Benefits:-

* Our Starter Boost Relay provides full battery voltage to the coil during cranking, eliminating the 1-2 volt drop through the wiring harness in single-fire applications.

* Makes start-up quicker & easier, especially with high-compression or stroker engines.

*“On Line Shopping Only