This site requires Adobe Flash Player 8. Get the Flash plugin now . For over 50 years, we've designed and manufactured industry-leading exhaust systems ranging from standard mufflers, to custom-engineered exhaust and emission solutions to meet tomorrow's environmental demands.While we're renowned for advancing the solutions behind spark ignited gasoline engine and diesel exhaust management systems, it's our dedication to providing our customers with unparalleled service that is the hallmark of our company.This site contains a range of information, resources and success stories. We invite you to explore them all to discover the ACTIVE Advantage for yourself. more... See more text