JM Motorsports LLC is owned by Jim Mack Jr., a mechanic who has been working on cars since he was a boy learning in his father's auto shop and racing team. He has gained real world experience working as a Master Mechanic for over 10 years. His experience and passion with a wide range of motorsport vehicles along with seeing the need for trustworthy and knowledgeable mechanics led Jim to open JM Motorsports in 2015.
Jim Mack's wife Stacey has a Bachelor's Degree in Mechanical Engineering from Marquette University. Her work in gas turbine component manufacturing as a Project Engineering Manager has given her experience with high precision machining, welding, laser-cutting, non-destructive testing, and forming. Her design background makes her well versed in 3D modeling of difficult assemblies.
Jim Mack's wife Stacey has a Bachelor's Degree in Mechanical Engineering from Marquette University. Her work in gas turbine component manufacturing as a Project Engineering Manager has given her experience with high precision machining, welding, laser-cutting, non-destructive testing, and forming. Her design background makes her well versed in 3D modeling of difficult assemblies.
Services
Jim's passion for horsepower and speed while being conscious of safety and budget means that you're in great hands. He will provide you with options and unbiased opinions of what is best for your vehicle. His research never ends in finding the best products on the market and the most prestigious sub-contractors in the area.
JM Motorsports did a great job on my 1974 Corvette. I was amazed with how quickly they were able to get the car back to me, even with the unexpected additional work. JM Motorsports recently replaced the drive shaft and performed other maintenance on my snowmobile. I'm very impressed and pleased with the quality and professionalism of the work.
Reviews (5)
Seth Cooley
Feb 03, 2021
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Tom B.
Aug 17, 2020
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Tom Ewald
Oct 05, 2019
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Shawn Hoppert
Jan 30, 2018
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I took my 10' Charger in last year for some basic mods and a dyno tune. His workmanship is excellent and I love the sound of my Charger. Once we found a solution for what I wanted to get done, we made a plan and we're working on it now. One step at a time, everything I've dreamed of with my car is coming true. Although my car has it's own issues, hes always made time when I've needed help.
Mitch D.
Feb 24, 2016
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JM Motorsports cares for all three of our cars. The level of professionalism, customer service and quality of work is superior to any other shop I've ever used. The owner is one of the most knowledgeable technicians I've ever spoken to. Every repair is fixed right the first time every time.
If you're into performance vehicles as I am. JM Motorsports is the best around and most knowledgeable for complete & customized builds. They will help you plan a goal for your car then work with you to achieve it. JM Motorsports built my 800+ horsepower Cadillac CTS-V with such quality that
If you're into performance vehicles as I am. JM Motorsports is the best around and most knowledgeable for complete & customized builds. They will help you plan a goal for your car then work with you to achieve it. JM Motorsports built my 800+ horsepower Cadillac CTS-V with such quality that
