Peterbilt 357/378 Exhaust Parts
Looking to upgrade Peterbilt 357/378 exhaust? We've got you covered with a range of superior chrome stacks, ranging from 5 to 8 inches in diameter and top styles like curve turn, miter cut, and bull hauler. Our assortment also includes various aftermarket clamps, mufflers, and elbows. For a complete overhaul, check out our 6, 7, and 8-inch exhaust kit options from Lincoln Chrome, American Eagle, and BESTfit
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BESTfit Exhaust Elbow Replaces 14-13845RC For Peterbilt 378, 379 Passenger Side
BESTFIT TRUCK PARTS
$377.99BESTfit Exhaust Elbow Fits Peterbilt 378 & 379Upgrade your vehicle's exhaust system with our premium aftermarket Exhaust Elbow designed for the passenger side! Crafted from durable chrome-plated steel, this replacement part ensures both style and...$377.99 -
BESTfit Exhaust Elbow Replaces 14-13845LC For Peterbilt 378, 379 Driver Side
BESTFIT TRUCK PARTS
$337.99BESTfit Exhaust Elbow Fits Peterbilt 378 & 379 Driver SideUpgrade your vehicle's exhaust system with our premium aftermarket Exhaust Elbow for the driver's side! Crafted from durable chrome-plated steel, this replacement part ensures both style and...$337.99 -
BESTfit 8 To 5 X 96 Inch Curve Turn Stack
BESTFIT TRUCK PARTS
$818.99BESTfit 8-5 X 96 Inch Turnout StackUpgrade your vehicle's exhaust system with our chrome-plated steel Exhaust Stack! Featuring a classic turnout style, this aftermarket replacement part boasts an 8 to 5-inch inner diameter for optimal performance. With a...$818.99 -
On Sale
BESTfit 2.5 X 14.75 Inch Flex Connector W/ Flange Replaces M666559 For Kenworth & Peterbilt
BESTFIT TRUCK PARTS
Now: $69.59Was: $147.99SS 12 3/4 Inch DPF Flex ConnectorPresenting our Connector, meticulously crafted in the USA to meet your vehicle's needs. With a 2.5-inch flange by 2.5-inch flange, compressed to 12.750 inches, this aftermarket replacement part ensures a precise fit in...Now: $69.59Was: $147.99 -
BESTfit 5 Inch X 14.5 Inch Bead Flex Connector W/ Flange Replaces M6665420335 For Kenworth & Peterbilt
BESTFIT TRUCK PARTS
$305.99BESTfit Stainless Steel 14.5 Inch Long DPF Flex Connector PipeIntroducing our Flex Connector, crafted in the USA with precision and care. This aftermarket replacement part boasts a 5-inch flange by 5-inch flange, compressed to 14.500 inches, ensuring a...$305.99 -
BESTfit 4 X 11.375 Inch Flex Connector Replaces M66-6541-0320 For Kenworth & Peterbilt
BESTFIT TRUCK PARTS
$223.99BESTfit DPF Exhaust Flex Connector PipeOur Flex Connector, crafted in the USA, boasts a 4-inch flange by 4-inch flange dimension, compressed to 11.375 inches. Ensuring top-notch quality, it's sold individually as an aftermarket replacement part,...$223.99 -
BESTfit Chrome 72 Inch West Coast Turnout Stack 5 Inch O.D.
BESTFIT TRUCK PARTS
$229.99BESTfit Chrome West Coast Turn Out Top Stack 72 Inch x 5 Inch O.D. * High Quality Stack* West Coast Turn Out* Made Of Chrome-Plated Steel* 5 Inch O.D. Straight End* 72 Inch Length* Mirror-Like Finish* Quality Triplex Nickel For Improved Adhesion And...$229.99 -
BESTfit 5 Inch Turbo Pipe Replaces 14-15329 For Peterbilt 377, 378 & 379
BESTFIT TRUCK PARTS
$186.99BESTfit Turbo Pipe Fits PeterbiltUpgrade your turbo system with our Turbo Pipe, expertly crafted from durable aluminized steel for long-lasting performance. Featuring a 5-inch flanged inlet and a 5-inch outer diameter outlet, this pipe ensures optimal...$186.99 -
BESTfit 8 - 5 O.D. X 60 Inch Chrome West Coast Turn Top Stack
BESTFIT TRUCK PARTS
$585.99BESTfit West Coast Exhaust Muffler TipUpgrade your vehicle's exhaust system with our top-of-the-line Exhaust Stack featuring a West Coast Turnout Top design. Constructed from durable chrome-plated steel right here in the USA, this stack seamlessly...$585.99 -
BESTfit 8 - 5 O.D. X 60 Inch Chrome Bull Hauler Top Stack
BESTFIT TRUCK PARTS
$498.99BESTfit 60 Inch Bull Hauler Exhaust Muffler Tip W/ 8 To 5 Inch O.D.Transform your vehicle's exhaust system with our quality Exhaust Stack featuring a Bull Hauler Top design. Crafted from durable chrome-plated steel and proudly manufactured in the USA,...$498.99 -
BESTfit 8 - 5 O.D. X 60 Inch Chrome Miter Cut Top Exhaust Stack
BESTFIT TRUCK PARTS
$520.99BESTfit Miter Cut 60 Inch Exhaust Muffler TipEnhance your vehicle's exhaust system with our top-of-the-line Muffler, featuring a stylish miter cut top design. Constructed from durable chrome-plated material and proudly made in the USA, this muffler...$520.99 -
BESTfit 8 - 5 O.D. X 48 Inch Chrome West Coast Turn Top Exhaust Stack
BESTFIT TRUCK PARTS
$483.99BESTfit Miter Cut 48 Inch Exhaust Muffler TipUpgrade your vehicle's exhaust system with our premium Exhaust Stack featuring a distinctive West Coast Turnout Top design. Crafted from durable chrome-plated steel and proudly made in the USA, this stack...$483.99