Wehrli Custom Fabrication Inc. specializes in high-performance diesel upgrades, custom metal fabrication, and powder coating. At WCFab we take pride in our reputation for providing the highest quality 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 from mild to wild. You can rest assured with the purchase of any of our custom-fabricated MADE IN THE USA parts that you will receive the best quality product, fitment, finish, performance, and customer service, before and after the sale.