Add to Cart Peterbilt Kenworth 7" x 36" Reduced OD Ceramic Lined Chrome Curved Exhaust Stack GrandRock MSRP: Now: $600.95 Was: Peterbilt Kenworth 7" x 36" Reduced OD Ceramic Lined Chrome Curved Exhaust Stack This Paccar replacement stack is equipped with a long 5" reduction and ceramic lined to help prevent chrome discoloration. Curved Exhaust Stack Diameter: 7"... MSRP: Now: $600.95 Was: Add to Cart