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 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: $164.99SS 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: $164.99 -
BESTfit 5 Inch X 14.5 Inch Bead Flex Connector W/ Flange Replaces M6665420335 For Kenworth & Peterbilt
BESTFIT TRUCK PARTS
$324.99BESTfit 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...$324.99 -
On Sale
BESTfit 4 X 11.375 Inch Flex Connector Replaces M66-6541-0320 For Kenworth & Peterbilt
BESTFIT TRUCK PARTS
Now: $116.78Was: $237.99BESTfit 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,...Now: $116.78Was: $237.99 -
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
$197.99BESTfit 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...$197.99 -
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 Miter Exhaust Top Stack, 7 X 48 Inch Reduced To 5 Inch I.D.
BESTFIT TRUCK PARTS
$376.99BESTfit 7 X 48 Inch Reduced To 5 Inch I.D. Miter Top StackExplore our Miter Top Top Stack, designed to enhance your vehicle's exhaust system with style and performance. Crafted with precision, this stack measures 7 inches in diameter and 48 inches in...$376.99 -
BESTfit Chrome Exhaust Elbow Replaces 14-13906L For Peterbilt 379 Driver Side
BESTFIT TRUCK PARTS
$344.99BESTfit Driver Side Chrome Multi-Bend Exhaust Elbow For Bottom Of Muffler Fits 379 PeterbiltDiscover our Chrome-Plated Steel Exhaust Elbow, meticulously crafted to enhance your vehicle's exhaust system. Engineered with durability in mind, this elbow...$344.99 -
BESTfit 4 Inch O.D. 90 Degree 12 X 12 Inch Chrome Exhaust Elbow, Plain On Both Ends
BESTFIT TRUCK PARTS
$174.99BESTfit Exhaust ElbowUpgrade your vehicle's exhaust system with our Chrome Plated exhaust component, measuring 4 inches in diameter. Sold individually as an aftermarket replacement part, it promises to add a touch of elegance to your vehicle's exhaust...$174.99 -
BESTfit 4 Inch O.D. 90 Degree 12 X 12 Inch Aluminized Exhaust Elbow, Plain On Both Ends
BESTFIT TRUCK PARTS
$64.99BESTfit Exhaust ElbowEnhance your vehicle's exhaust system with our 90-degree angle exhaust elbow, measuring 12 x 12 inches long and featuring a 4-inch diameter. Sold individually as an aftermarket replacement part, this exhaust elbow ensures...$64.99 -
BESTfit 4 X 4 Inch Plain Exhaust Elbow
BESTFIT TRUCK PARTS
$53.99BESTfit Plain Exhaust ElbowEnhance your vehicle's exhaust system with our 90-degree bend exhaust elbow, featuring a 4-inch outer diameter. Sold individually as an aftermarket replacement part, this exhaust elbow ensures compatibility and easy...$53.99