From Exhaust Shop to Full-Service Auto Repair… Get to Know Muffler Man Mechanical


Dwayne and Shawna Bullock opened Muffler Man in Grande Prairie in August 2005, focusing on custom exhaust work. In April 2016, they took over the auto repair shop next door, Perfection Automotive, and changed the name to Muffler Man Mechanical in August 2017 to reflect the business’s change of ownership and Muffler Man’s expansion into full-service auto repair. The Bullock's strive to provide honest, quality auto repairs for Grande Prairie and area.

Dwayne Bullock owner of Muffler Man

A Little About Dwayne


As an auto shop employee, Dwayne was always the guy who solved problems and got things done. Based on his knowledge and authority, Dwayne was often assumed to be the owner. Always wanting to own his own business, an opportunity arose to share a larger building with another automotive garage, Dwayne took it.

Today, Dwayne has 35 years of experience in the automotive industry, with 25 years as a shop manager and high-end exhaust technician. He remains an exhaust system expert, skilled in custom pipe bending. As an auto repair shop owner, Dwayne loves being able to help customers and surprising them with quality and value for the dollar.

A Little About Shawna


Shawna has worked in customer service her entire career. Using her experience and knowledge, it goes without saying her customer service skills are excellent. At the shop, Shawna helps at the front counter, looks after the bookkeeping, and handles the management side of the business. She loves gaining the trust of a new customer, creating loyalty, and generating referrals.

Shawna Bullock co-owner of Muffler Man - Auto Repair Shop

Meet Our Auto Repair & Service Team


  • Lindsay
    LindsayService Advisor

    Lindsay is the efficient and knowledgeable service writer at Muffler Man Mechanical. She does an excellent job explaining necessary auto repairs, and she provides estimates, orders parts, answers phones, and schedules appointments. Give Lindsay a call, and she will help you!

  • Scott
    ScottApprentice Auto Repair Technician

    Scott is our apprentice mechanic and really impresses us with his ability. He is always ready to tackle a new job.

  • Joey
    JoeyRed Seal Journeyman Heavy-Duty Technician & Automotive Apprentice

    Joey is a Red Seal Journeyman Heavy-Duty technician and is apprenticing for his Automotive license. He has also served us for many years as an excellent exhaust technician at The Muffler Man. Joey is driven to provide the best service he can and always goes the extra mile to get the job done.

  • Ozzy & Tubbs
    Ozzy & TubbsGreeters & Cuddlers

    "The Boys," Ozzy and Tubs are our official greeters and cuddlers. We often find them curled up with our customers on the couch or snoozing in a comfy chair in the waiting room.

  • HarvExhaust Technician
    A familiar face! We have welcomed Scott back to our team. As an exhaust specialist with over 30 years experience, he will advise the best options for our customer's exhaust repairs.
  • JeffRed Seal Journeyman Automotive Technician
     Jeff has over 20 years experience, and when asked what his specialty is, he laughs and says,"I do what I'm told". In all seriousness Jeff is always there to offer a hand to the apprentices and to help make sure everyone gets the job done right.
  • JonathanJourneyman Automotive Technician
    Jon has over 15 years experience in the industry and specializes in electrical diagnosis and driveability concerns. Another awesome member of the team, helping our apprentices be their best while doing a great job.