About Us

Whatever your favorite American muscle car is, make sure that your replacement parts are "Made in the USA." You have the right to ask & know the answer. At what point is a Corvette with more parts made in China still an American Corvette?  About Us - Sweet Thunder, established in 1979, has put the muscle back into muscle car sound. Made in Michigan! We here at Sweet Thunder Exhaust are..., American Steel, & good old American ideas and ingenuity. For the highest quality buy American and help to keep Americans working!

 made in mi

Sweet Thunder was established in 1979 by Mike Cederstrom and taken from a small garage in Cadillac to the current address at 10585 W. Cadillac Rd. Cadillac, Michigan 49601. Over the years as Mike built this business he had one focus, and that was to create original style chambered mufflers that not only looked correct but sounded great. Sweet Thunder has put the muscle back into muscle car sound. In 2014 the company was purchased by John Crawford of Cadillac, Michigan. Raised in Michigan, I hold an engineering degree from DeVry University. I intend on maintaining the same quality and attention to detail that Mike is known for and Sweet Thunder customers have become accustomed to.

I am expanding the market reach with Sweet Thunder by introducing many new products into our lineup. These will include early and late Mustangs and Cobra systems along with other Ford models. Also, we will get deeper into Pontiac, Oldsmobile, and Buick to round-out the GM line. We will also be expanding our Mopar line to include some of the older generation cars. All in all we expect a great ride and invite you to come along! Thank you for your interest in our company and we look forward to hearing from you.


John Crawford


Sweet Thunder Exhaust Systems