1st Gen 5.9L 12V Cummins Exhaust System

Unlock restricted horsepower, lower exhaust gas temperatures (EGTs), and unleash the legendary turbo whistle and deep exhaust note of your classic Dodge Ram with a performance exhaust system engineered for the 1989–1993 1st Gen 12V Cummins. Factory restrictive exhaust piping chokes the life out of the iconic 12-valve engine, trapping heat and limiting efficiency under load. Upgrading to a mandrel-bent, high-flow exhaust system improves exhaust scavenging, accelerates turbo spool-up, and delivers maximum durability to keep your vintage diesel running cool and strong on the highway or the job site.