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Feature

No muffler for maximum performance
Mandrel bent tubing
Installs with common hand tools
Can improve fuel economy by 1-2 mpg
Boosts torque and horsepower.4 inch Aluminized steel construction

Description

The down pipe back type system mounts to the short stock down pipe in Duramax equipped vehicles and eliminates the catalytic converter. The objective is to provide the absolute lowest exhaust gas temperatures, maximum exhaust flow, torque and horsepower possible. The ideal configuration for off road applications. Fits 2001-2007 Extended Cab/Crew Cab Configurations.