MGI SpeedWare — Racing Switch Panels & Fuse and Relay Boxes Automotive Switch Panels. We build only the most reliable and popular show car and racing switch panels — with premium rockers or toggles — which are designed to control 12 volt lighting, fully-resistive loads, and relays that operate motor loads. MGI’s unique online experience allows you to customize your switch panel with ease. Choose the number of switches, their colors, a main fuseCustom Switch Panels · 18 Fuse Panel · Relay Banks · 12VDC Relays Videos of racing switches with fuse box Click to view on YouTube8:48DIY Race Car Fuse/Relay Panel14K viewsYouTube · 8/6/2018Click to view on YouTube29:53Wiring A Race Car. MS3 Gold Box LS Wiring Harness Install. Switches, Fuse Panels And More!3 viewsYouTube · Click to view on YouTube10:24How To Make A Relay Board - Race Car Wiring9 viewsYouTube · 10/4/2018See more videos of racing switches with fuse box Speedwire Systems - Electrical Systems Built for Racers by At Speedwire Systems, our goal and vision is to refine and simplify vehicle chassis electrical control and installations, helping our customers to build consistent and reliable race-winning vehicles. Our products allow racers to spend their time on their race program rather than debugging electrical issues.