MJ Marine Exhaust Systems, LLC is a Pacific Northwest based company serving manufacturers and outfitters of marine vessels. You may not have heard of MJ Marine before, but you know us. Formerly known as UNICRAFT MARINE PRODUCTS INC. we have over 20 years of fiberglass manufacturing experience and take pride in our marine products. We are dedicated to providing our customers with the very finest marine exhaust products. We provide solutions and exhaust systems throughout the Pacific Northwest, the West Coast and the North and Southeast. Specializing in Custom Marine Exhaust Systems Custom marine projects are our specialty. If you have a custom project, give us a call at 360.734.2285 and find out how we can help you. You can also email us at [email protected].