| Business | Phone |
| Ace Mufflers & Performance Ctr 40 Federal Blvd, Denver 80219 | (303) 922-3142 |
| B Dm Performance Exhaust Denver 80219 | (303) 922-2992 |
| Bud's Muffler Svc Inc 1010 Santa Fe Dr, Denver 80204 | (303) 629-0934 |
| Discount Muffler & Brake 4300 E Evans Ave, Denver 80222 | (303) 756-6656 |
| Extreme Muffler 2400 E 46th Ave, Denver 80216 | (303) 295-2308 |
| Intermountain Radiator-Muffler 2500 Federal Blvd, Denver 80211 | (303) 455-5661 |
| Meineke Car Care Ctr 3146 W Alameda Ave, Denver 80219 | (303) 922-8141 |
| Meineke Car Care Ctr 4839 E Colfax Ave, Denver 80220 | (303) 393-0051 |
| Meineke Car Care Ctr 691 W 84th Ave, Denver 80260 | (303) 428-7822 |
| Meineke Car Care Ctr 7637 E Iliff Ave, Denver 80231 | (303) 695-1246 |
| Midas Auto Svc Experts 341 S Colorado Blvd, Denver 80246 | (303) 388-6455 |
| Midas Auto Svc Experts 959 W 6th Ave, Denver 80204 | (303) 595-0076 |
| Muffler King 2920 Larimer St, Denver 80205 | (303) 297-3122 |