Gibson 15-19 GMC Sierra 2500 HD Base 6-6L 4in Filter-Back Single Exhaust - Stainless - ( Gibson 615623 )

You can expect significant gains in horsepower and torque, and a lower exhaust gas temperature.

Gibson 15-19 GMC Sierra 2500 HD Base 6.6L 4in Filter-Back Single Exhaust - Stainless

Filter-Back Single Exhaust System; Stainless

Gibson Exhaust System Kit

Single Exhaust