Diode Dynamics 20-21 Sierra 2500/3500 LED Sidemarkers HD Smoked Set M3 [E90][E92][E93] you know and trust

you know and trust

this clutch can handle almost any horse-power you can throw at it and still remain street-able

shim and the mounting hardware

XK Glow Flex Strip Million Color XKCHROME Smartphone App Undercar Kit 8x24In Slim Tube + 6x10In

Diode Dynamics 20-21 Sierra 2500/3500 LED Sidemarkers HD Smoked Set M3 [E90][E92][E93] you know and trustFeatures Plug and play compatible with GMC Sierra HD 2020+ fender lights Dynamic startup sequence with animated effect Fully illuminated housing, with dual lens design for an even glow Optional Sequential turn signal feature, with plug and play wiring harness OEM grade construction and perfect fitment Engineered and assembled in USA Overview Upgraded Styling. These LED sidemarkers are a plug and play replacement for the factory fender lights,