Thanks to our satisfied growing customer base of diesel enthusiasts like yourself, Wehrli Custom Fabrication has continued to make a distinct footprint in the ever-growing, competitive, diesel performance industry. Leading the way in product development and new idea’s for several years, we continue to strive and excel in offering the latest and greatest products for your diesel truck. Whether you use your diesel truck for work, play, performance, or racing, you can trust US to exceed YOUR expectations.