our capabilities

We offer COMPLETE AUTO REPAIR, servicing cars and light trucks of all makes and models as well as exhaust work and custom pipe bending. Our experienced crew keeps their skills sharp by attending training using state of the art automotive technology. Our technicians are qualified to handle everything from light to heavy engine repair.

We want our customers to know that we are not just a muffler shop! You can trust us to give your family the quality auto service they deserve.

maintenence services

Oil, Lube & Filter

Oil is the lifeblood of your vehicle. Regular oil changes performed at regular intervals (consult your owner's manual) not only keep your vehicle running at its best, but also helps avoid potential mechanical failure in the future.

Transmission Services

At Rainbow Muffler McDonough, we service both manual and automatic transmission, diagnosing the root cause of the problem quickly to help you make the best decision for your car's repair.


We offer trouble shooting for check engine lights, as wells as engine sensors, computer diagnostics and electronic controls.

General Car Care

At Rainbow Muffler in McDonough, we want our customers to feel comfortable, confident, and safe behind the wheel. Its important to have your scheduled maintenence at 30k, 60k, 90k, and 120k.