Wehrli Custom Fabrication Inc. specializes in high-performance light duty diesel upgrades, CNC machining, custom metal fabrication, and ceramic and powder coat finishing. At WCFab we take pride in our reputation for providing the highest quality Made in USA fabricated parts and performance upgrades for Duramax, Powerstroke, & Cummins powered diesel trucks. Whether you use your truck for work, play, or competition, WCFab has the parts you need to optimize your diesel’s performance.