Grandma's speed shop

Grandma's speed shop is THE BEST diesel performance shop in Michigan. Don't waste ur time going to anyone else. Great work and staff. Dan and Dane are easy to talk to and are very knowledgeable. They get me right everytime! Thanks for the great work! 5 starts long over due!

I would like to give a HUGE thank you to Frank from Grandma’s Speed Shop for fixing my flat tire today! Good Samaritans are angels God sends your way to help! I was waiting for roadside service…. The standard half hour to 45 min wait and a pickup truck pulls up next to me and asks me if I needed help. He was going to put my donut spare on but when i told him I had a 2 hour drive to Kalamazoo, he said, Nooo! I’m going to try and patch up your tire, its not a good idea to travel that far on a donut! Well, he fixed my tire for me, in the freezing cold rain and was sooo kind every step of the way! Thank you Frank!

These guys know their stuff! I had a bunch of major work done by them. I am Completely satisfied and will be a customer for life. They are honest, and a group of great guys. The saying " you get what you pay for" is absolutely true.
I can't recommend them more!!

Awsome service and great customer service as well, i will explain a little so you understand. My truck was lightly dented after hours by a non employee and these guys completely covered the repair cost and went out of there way to re paint my front bumper that had rock chips on it for FREE. They cover the cost and did it without hassle , not many companies are honest and willing to go the extra mile for the customers these days but Grandmas Speed Shop will most definitely give you the best service around !!!