Exhaust

Multi-Bend Turbo Pipe For PeterbiltRevitalize your Peterbilt's exhaust system with the innovative 5 Inch Multi-Bend Turbo Pipe from 4 State Trucks. Constructed from high-grade aluminum for maximum durability, this turbo pipe features a 5-inch flanged...

BESTfit Aluminized 409 Stainless Steel Exhaust Pipe Fits Peterbilt 389 Day CabThe BESTfit Aluminized Stainless Steel Exhaust Pipe is a durable and reliable replacement designed for Peterbilt 389 Day Cab models. Constructed from 409 aluminized stainless...

BESTfit Exhaust Bushing Kit With Sleeve Fits Peterbilt 2010-NewerThe BESTfit Exhaust Bushing Kit Upper With Sleeve is designed specifically for Peterbilt 389 and 388 models, providing a durable and reliable solution for exhaust mounting. This...

Aluminized Steel 75 Degree Exhaust Elbow W/ 5 Inch I.D. Inlet & 5 Inch O.D. OutletBoost your Peterbilt 377, 378, or 379's exhaust with the BESTfit 5 Inch 75 Degree Aluminized Exhaust Elbow from 4 State Trucks. Made of aluminized steel, this exhaust elbow...

BESTfit Exhaust Elbow Fits Peterbilt 378 & 379 Driver SideFor Peterbilt 378 and 379 owners, the BESTfit Exhaust Elbow presents a superior solution for enhancing your truck's exhaust on the driver side. Constructed from durable chrome-plated steel, this...

BESTfit Y-Pipe Fits PeterbiltTransform your Peterbilt's exhaust system with the BESTfit Chrome 6 Inch Y-Pipe, engineered for 378, 379, 389, and 389 Glider models. Made from chrome-plated steel, this Y-Pipe not only enhances your truck's appearance but...

BESTfit Y-Pipe Fits PeterbiltRevamp your Peterbilt's exhaust system with the premium BESTfit Chrome 7 Inch to 5 Inch Y-Pipe from 4 State Trucks. Crafted for the BESTfit long leg, this chrome-plated steel Y-Pipe transitions smoothly from 7 to 5 inches O.D...

BESTfit Exhaust Elbow Below Muffler Fits PeterbiltThis high quality 5 inch plain exhaust elbow fits Peterbilt passenger side. The elbow comes with a 1 year warranty.* High Quality Exhaust Elbow* 5 Inch Plain* Passenger Side* Sold Individually* Warranty...

BESTfit Aluminized Steel 85 Degree Turbo Pipe With 5 Inch ODUpgrade your exhaust system with this BESTfit 85-Degree Turbo Pipe, designed to fit Peterbilt 357, 377, 378, and 379 models, replacing OE part number 14-13002. This aluminized steel pipe, with a...

BESTfit 5 Inch Taper Lock Y Exhaust PipeEnhance your exhaust system with the BESTfit Chrome 5 Inch Tapered Y-Pipe, designed to fit Peterbilt 378, 379, 389, and 389 Glider models. This premium Y-Pipe is manufactured from chrome-plated steel, ensuring a...

BESTfit Exhaust Y Pipe Fits Peterbilt 379 Day Cab With Behind-The-Cab MufflersFor Peterbilt 379 day cab owners looking to replace their current exhaust tee, look no further than the BESTfit Exhaust Tee is the optimal choice. Sold individually, this...

Peterbilt Chrome 58 Degree Angled Exhaust Elbow - 5 OD To 5 OD InchThis is a durable, high-quality chrome steel exhaust connector with a stunning triple chrome-plated finish for a long-lasting shine. It's designed to connect two exhaust pipes, each with...