| Business | Phone |
| Esi Engine System Inc 7149 Mission Gorge Rd # A, San Diego 92120 | (619) 229-7765 |
| South West Abc Machine Shop 4011 1/2 Van Dyke Ave, San Diego 92105 | (619) 521-1589 |
| Southwest Machine Shop 8873 Balboa Ave, San Diego 92123 | (858) 505-0149 |
| Moonlight Machine 3850 Hiawatha Way, San Diego 92117 | (858) 274-5119 |
| Floyds Automotive Machine Svc 4603 El Cajon Blvd, San Diego 92115 | (619) 284-7333 |
| G G Auto Machine 9210 Dowdy Dr # F, San Diego 92126 | (858) 271-0353 |