For the best prices on expert muffler/exhaust system services in South Orange County, call on Collins Muffler & Hitch. We are a family-owned auto shop with over 40 years of experience and thousands of satisfied customers throughout Mission Viejo, Aliso Viejo, Laguna Niguel, and nearby areas. Since 1974, we have been providing high quality muffler and exhaust system installation and repair, brake repair/replacement, catalytic converter replacements, performance upgrades, and custom in-house welding services. We also offer trailer hitch and truck accessory sales and installation, and are Authorized Dealers for Flowmaster, Curt, Magnaflow, Walker, Dynomax, K&N, Hidden Hitch, and more.  Our auto mechanics have over 10 years of experience each, with the skills and expertise to work on all makes and models of foreign and domestic cars, vans, SUVs, and light trucks. Give us a call today for a free estimate, or visit our muffler shop in Mission Viejo. We offer convenient appointments and welcome walk-ins.