WHETHER YOU NEED AN EXHAUST SYSTEM PROTOTYPE OR A LONG-TERM EXHAUST SYSTEM SUPPLIER

In late June 2026, two business leaders from Principal Financial Group, Amy Friedrich and Nate Schelhaas, toured Auto-jet Muffler Corporation's manufacturing plant in Clive, Iowa. The visit covered how the company plans production capacity, sources its material, and manufactures finished exhaust components. Auto-jet manufactures exhaust systems and components for school-bus and heavy-duty applications. The steel used in production is sourced domestically. In a public post fol

Thomas Built flex pipe bellows replacement requires model confirmation before ordering. The same bellows carries across several Thomas Built platforms, but the turbo-pipe and DPF pipe it connects to change by engine, so the engine and configuration drive the part. A failed bellows on a Thomas Built is a repair-now item - deferring it transfers load to the muffler inlet and accelerates secondary damage. How to Identify a Thomas Built School Bus Flex Pipe Bellows Replacement N

Ordering the wrong exhaust part for a Thomas Built bus usually comes down to one missed detail: the part is matched to the body, when it should be matched to the engine and the year. Two buses that look the same can take different mufflers, flex pipes, and hangers depending on the engine under the hood and the model year. The short answer: to get the right Thomas Built school bus exhaust parts, match the part to four things, in order. The engine, the model year, the bus confi