- Roadworks 6 Inch Boilermaker Cut Exhaust Kit For Kenworth W900L With 40 Inch Boxes And Dual Cat.....Starting at $2,744.94RWKITKW16B96-GRoadworks 6 Inch Slash Cut Exhaust Kit For Kenworth W900L With 40 Inch Boxes And Dual Cat ConvertersStarting at $2,636.79RWKITKW16S96-GRoadworks 6 Inch Slash Cut Exhaust Kit For Kenworth W900L With 45 Inch Boxes And Single MufflerStarting at $2,636.79RWKITKW46S96-GRoadworks 6 Inch Boilermaker Cut Exhaust Kit For Kenworth W900L With 45 Inch Boxes And Single M.....Starting at $2,744.94RWKITKW46B96-GRoadworks 6 Inch Boilermaker Cut Exhaust Kit For Kenworth W900L With 40 Inch Boxes And Single M.....Starting at $2,744.94RWKITKW36B96-GRoadworks 6 Inch Slash Cut Exhaust Kit For Kenworth W900L With 45 Inch Boxes And Dual Cat ConvertersStarting at $2,636.79RWKITKW26S96-GRoadworks 6 Inch Boilermaker Cut Exhaust Kit For Kenworth W900L With 45 Inch Boxes And Dual Cat.....Starting at $2,744.94RWKITKW26B96-GRoadworks 6 Inch Slash Cut Exhaust Kit For Kenworth W900L With 40 Inch Boxes And Single MufflerStarting at $2,636.79RWKITKW36S96-G6 Inch Kenworth W900L 40" Box Step OEM Style Elbow Exhaust KitStarting At$2,417.40DF-KH-605052CP-MITER6 Inch Kenworth W900L 40" Box Step OEM Style Elbow Exhaust KitStarting At$2,417.40DF-KH-605052CP-STRT6 Inch Kenworth W900A Under Frame OEM Style Elbow Exhaust KitStarting At$2,379.29DF-KB-605048CP-MITER6 Inch Kenworth W900A Under Frame OEM Style Elbow Exhaust KitStarting At$2,379.29DF-KB-605048CP-STRT6 Inch Kenworth W900B Over Frame OEM Style Elbow Exhaust KitStarting At$2,349.42DF-KC-605048CP-MITER6 Inch Kenworth W900B Over Frame OEM Style Elbow Exhaust KitStarting At$2,349.42DF-KC-605048CP-STRT6 Inch Kenworth W900L 45" Box Step OEM Style Elbow Exhaust KitStarting At$2,354.57DF-KV-605052CP-MITER6 Inch Kenworth W900L 45" Box Step OEM Style Elbow Exhaust KitStarting At$2,354.57DF-KV-605052CP-STRT6 Inch Kenworth W900L 45" Box Step OEM Style Elbow Exhaust KitStarting At$2,416.37DF-KG-605052CP-MITER