Shawn's Mufflers & Welding Shawn's Mufflers & Welding also does vehicle repairs on Catalytic Converters. They are located on 2907 Lake Forest Rd in Tahoe City. Shawn's Mufflers & Welding They have not yet been reviewed on MojoPages.com. They can be reached by calling (530) 583-0761 They accept Visa, Discover, Master Card. for payment.