1. Avery Muffler 19390 Industrial Dr, Sonora, CA 95370 Coordinate: 37.97508,-120.31918 Phone: (209) 532-4611
2. Jim's Automotive /Opie's Garage 668 Shaws Flat Rd, Sonora, CA 95370 Coordinate: 37.9934,-120.38807 Phone: (209) 532-3624