EXHAUST

BESTfit Driver Side Exhaust Elbow Chrome-Plated Enhance your exhaust system with this premium Exhaust Elbow crafted from durable chrome-plated steel. Designed with precision, this elbow features a 5-inch diameter and a 20-degree bend, catering to your...

BESTfit Exhaust Y-Pipe Fits Kenworth Upgrade your vehicle's exhaust system with this top-notch Exhaust Pipe, constructed from robust steel for long-lasting durability. With a practical 5-inch length, it suits various applications and is sold individually...

BESTfit Kenworth Steel Exhaust Y-PipeEnhance your vehicle's exhaust system with this reliable Exhaust Pipe. Crafted from durable steel, this aftermarket replacement part ensures durability and optimal performance. With a convenient 5-inch length, it is...

High Flow Stock Muffler ReplacementThis high flow replacement type one muffler is designed to work with most engines. With a bolt in design, it easily replaces a 10 inch diameter stock muffler without increasing noise level. Studies have shown a minimum...

BESTfit Freightliner Turbo PipeOur American-made pipe is a reliable aftermarket replacement part, sold individually for your convenience. Crafted with precision and quality materials, this pipe ensures durability and longevity. Trust this aftermarket...

BESTfit Chrome-Plated Steel Y Exhaust Pipe W/ 5 Inch O.D. Inlet & OutletsUpgrade your exhaust system with this premium Exhaust Y-Pipe made of durable chrome-plated steel. Designed for optimal performance, it features a 5-inch outer diameter inlet and two...

BESTfit 8 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 an 8 inch O.D. stack, it can reduce exhaust...

BESTfit Chrome Exhaust MufflerUpgrade your vehicle's exhaust system with these premium Chrome-Plated Steel Mufflers. Featuring a sturdy construction, these mufflers have a body diameter of 6 inches, along with a 6-inch inlet and outlet for optimal...

BESTfit Exhaust Shield Smooth No HoleElevate your vehicle's style and protection with this Stainless Steel Exhaust Shield. Featuring a unique design with vertical slots, this shield adds a touch of sophistication to your exhaust system. With an 8-inch...

BESTfit Plain Stainless Steel Exhaust Shield With No HolesEnhance your vehicle's exhaust system with this Stainless Steel Exhaust Shield. Crafted for durability and style, this shield boasts a 7-inch outer diameter and a generous 48-inch length,...

BESTfit Exhaust Shield Smooth No HoleUpgrade your exhaust system's protection with our Stainless Steel Exhaust Shield, meticulously crafted in the USA for durability and longevity. Featuring a 180-degree wrap design with a smooth surface and no holes,...

BESTfit Aluminized Steel Mounting Bracket For 9 Inch Diameter MufflerUpgrade your exhaust system with the Aluminized Steel Exhaust Bracket, a reliable aftermarket replacement part. This muffler mounting clamp features a sturdy 2-bolt bracket, and the...