| Business | Phone |
| R & D Performance 3804 Woodbury Dr, Austin 78704 | (512) 441-8544 |
| Performance Motorsports 2720 Hancock Dr, Austin 78731 | (512) 371-9950 |
| Applied Racing Technology 115 E Saint Elmo Rd C, Austin 78745 | (512) 707-8869 |
| River City Racing Engines 12108 Roxie Dr C, Austin 78729 | (512) 257-0792 |