Want to gain 12-18 hp and 25 lb-ft of torque, reduce exhaust temperatures, and improve fuel economy? DynoMax says it's possible by installing its new high-efficiency cat-back exhaust system for the 6.6L Duramax diesel. The system is available for '01-'02 2WD and 4WD Chevy Silverado HD and GMC Sierra HD 2500 and 3500 models. It features a high-strength DynoMax Ultra Flow welded muffler, all-aluminized mandrel-bent tubing, and a stylish rectangular slash-cut chrome tip. DynoMax Performance Exhaust, Dept. TT10, 2701 N. Dettman Road, Jackson, MI 49201; 800/767-DYNO.
