EXHAUST

BESTfit Chrome-Plated Steel Exhaust Adapter Reducer 7 Inch O.D. to 5 Inch O.D. * High Quality Exhaust Reducer* Made of Chrome-Plated Steel* 7 Inch O.D. On Top* 5 Inch O.D. On Bottom* 8 Inch Length* Sold Individually* Warranty On Exhaust Reducers Against...

BESTfit 9 Inch Diameter Muffler With 5 Inch Inlet & Outlet * High Quality Muffler* 9 Inch Diameter* 5 Inch Inlet And Outlet* Sold Individually* Made In The USA* Warranty On Muffler Against Defects In Workmanship & Material From Date Of Purchase.***High...

BESTfit Steel Exhaust Extension For Y-Pipe W/ 5 Inch ID Inlet & 5 Inch O.D. Outlet * High Quality Exhaust Pipe* Made Of Steel* 5 Inch Inlet* 5 Inch Outlet* Fits Early Aerocab With 1 Muffler Under Truck* Fits Between Driver Side Of Y Pipe And Driver Side...

BESTfit Kenworth Steel Exhaust Y-Pipe * High Quality Exhaust Pipe* Made Of Steel* 5 Inch Length* Sold Individually* Made In USA* Warranty On Exhaust Pipe Against Defects In Workmanship & Material From Date Of Purchase.***High Quality Aftermarket...

BESTfit 7 Inch Stack Muffler InsertLet 4 State Trucks help you reduce the high pitch, harsh tones that can be found in a diesel exhaust with this quality Exhaust Muffler Insert. Fit snugly into the base of a 7 inch O.D. stack, it can reduce exhaust noise...

BESTfit 6 Inch Stack Muffler InsertLet 4 State Trucks help you reduce the high pitch, harsh tones that can be found in a diesel exhaust with this quality Exhaust Muffler Insert. Fit snugly into the base of a 6 inch O.D. stack, it can reduce exhaust noise...

BESTfit 5 Inch Stack Muffler InsertLet 4 State Trucks help you reduce the high pitch, harsh tones that can be found in a diesel exhaust with this quality Exhaust Muffler Insert. Fit snugly into the base of a 5 inch O.D. stack, it can reduce exhaust noise...

BESTfit Steel Exhaust Y-PipeThis Exhaust y-pipe is made of aluminized steel, to increase resistance to rust and corrosion. It has a 5 inch ID and O.D. with a length of 30 inches and is 15 inches long. * High Quality Exhaust Pipe* Made Of Steel* 5 Inch...

BESTfit Exhaust Y Divider Pipe * High Quality Exhaust Pipe* Made Of Steel* 5 Inch Y-Divider* 15 Inch Length* 30 Inch Width * 5 Inch R* Sold Individually* Warranty On Exhaust Pipe Against Defects In Workmanship & Material From Date Of Purchase*** High...

BESTfit 36 Inch Chrome-Plated Steel Turn Out Exhaust Stack W/ 4 Inch I.D. * High Quality Top Stack* Made Of Chrome-Plated Steel* 4 Inch I.D. x 36 Inch* Sold Individually* Warranty On Top Stacks Against Defects In Workmanship & Material From Date Of...

BESTfit Chrome-Plated Steel Exhaust Elbow W/ 56 Degree Bend & 5 Inch O.D. * High Quality Exhaust Elbow* Made Of Chrome-Plated Steel* 5 Inch OD * 15 Inch* 56 Degree Bend* Sold Individually* Made In The USA* Warranty On Exhaust Elbows Against Defects In...

BESTfit Exhaust Y-Divider Fits Kenworth * High Quality Exhaust Y- Divider* Made Of Steel* 5 Inch Diameter* Fits Kenworth Models With Exhaust Elbows That Are Above The Frame* Sold Individually* Warranty On Exhaust Y-Dividers Against Defects In...