Exhaust

BESTfit Flex Connector Replaces 21428534* High Quality Connector* 4 Inch Flange x 5 Inch Flange x 17.5 Inch Relaxed* Replaces OEM # 21428534* Sold Individually* Made In USA* Warranty On Flex Connector Against Defects In Workmanship & Material From Date...

BESTfit Stainless Steel 12.25 Inch Long DPF Flex Connector W/ 4 Inch Flange* High Quality Flex Connector* Made Of Stainless Steel* 4 Inch Flange x 4 Inch Flange x 12.250 Inch Compressed* Sold Individually* Made In USA* Warranty On Flex Connectors Against...

BESTfit Chrome Miter Cut Style Top Exhaust Stack 6-5 X 60 Inch* High Quality Exhaust Top Stack* Top Cut Style - Miter Cut* Made Of Chrome-Plated Steel * 6 Inch OD Stack With Reduced 5 Inch OD Extra Long Inlet* Long Reduced 5 Inch End Measures 7 Inches...

BESTfit Oval Muffler Fits Kenworth T800, W900, International 9200, 9400 & 9900* High Quality Oval Muffler* Aluminized Steel* 5 Inch Inlet And Outlet* Body- 10 Inch x 15 Inch* Body Length- 26 Inch, Overall- 29 Inch* Offset Clock Position- Inlet 3 Inch/12...

BESTfit Aluminized Steel Type 1 Muffler Fits Kenworth & PeterbiltRevitalize your Kenworth or Peterbilt's exhaust system with the BESTfit 10 X 49.5 Inch Type 1 Muffler from 4 State Trucks. This top-tier muffler, crafted from aluminized steel, boasts a...

BESTfit DPF Gasket Fits Detroit* High Quality Gasket* Sold Individually* Warranty On Gasket Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket Replacement Part (Not OEM)**** Replaces OE Numbers: A4709970045,...

BESTfit Band Clamp Fits 6.6L & 7.8L Ford* High Quality V-Band Clamp* Stainless Steel* 3.5 Inch * Holds Flanged Joints Together For A Water Tight Seal* Highly Corrosion Resistant* Sold Individually* Made In USA* Warranty On V Band Clamp Against Defects In...

BESTfitHeavy Gauge Steel W/ Aluminized Plating OE Style Exhaust MufflerThe BESTfit 5 X 51 Inch Aluminized Steel Exhaust Muffler offers an OE-style upgrade for your truck's exhaust system. This high-quality muffler is made of heavy gauge steel with...

BESTfit Heat Shield Fits Multiple ModelsShield your exhaust with our high mount heat shield, designed for a 5-inch exhaust pipe with one inch of breathing room. Protect your system from excessive heat and ensure optimal performance.* High Quality Heat...

Stainless Steel 3.5 Inch V-Band Clamp* High Quality V-Band Clamp* Stainless Steel* 3.50 Inch* Sold Individually* Warranty On V-Band Clamps Against Defects In Workmanship & Material From Date Of Purchase*** High Quality Aftermarket Replacement Part (Not...

BESTfit 4 X 60 Inch Aluminized Steel TubeAre you looking to customize your exhaust for the best performance and sound possible? 4 State Trucks offers this high quality straight cut exhaust stack that is made to perform. It is constructed with strong and...

BESTfit DPF Flexible Exhaust Connector, Replaces A04-25922-018This high quality 4 X 16 inch DPF flex connector that fits Freightliner models includes: 1 flex connector with flanged ends, 2 V band clamps, 2 steel V band adapters, and 2 exhaust rings. The...