| Business | Phone |
| Aldridge Motorsports & Engnrng 6006 Ne Holladay St, Portland 97213 | (503) 284-8484 |
| Baxter Auto Parts Inc 8950 N Lombard St, Portland 97203 | (503) 286-5751 |
| Sjm Autotechnik 12607 Sw 62nd Ave, Portland 97219 | (503) 244-2834 |
| Rallitek Performance 1040 Se Clinton St, Portland 97202 | (503) 546-9209 |
| Performance Race Engineering 18061 Se Division St, Portland 97236 | (503) 619-0055 |
| Ground Zero Motor Sports 8216 Ne Sacramento St, Portland 97220 | (503) 256-3278 |
| Horsepowerfreaks Inc 12905 Ne Airport Way, Portland 97230 | (503) 256-5600 |
| Import Ssllc 133 Se 82nd Ave, Portland 97216 | (503) 465-1198 |
| Matrix Engineering 4000 Sw Macadam Ave, Portland 97239 | (503) 443-1141 |