null
Shop by Make, Model & Year
Peterbilt Exhaust Parts

Peterbilt Exhaust Parts

Upgrade your big rig with premium Peterbilt exhaust systems from 4 State Trucks. Our extensive collection of Peterbilt semi truck exhaust components delivers the perfect blend of performance and style. From chrome stacks to high-flow mufflers, we offer everything to enhance your Peterbilt exhaust setup. Improve fuel efficiency, reduce backpressure, and turn heads with our top-quality Peterbilt exhaust solutions. Whether you're after a subtle upgrade or a complete custom overhaul, 4 State Trucks has the Peterbilt exhaust options to make your truck rumble with power and pride on the open road.
  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • BESTfit 5 OD X 18 Inch Aluminized Internal Muffler / Baffle -16 Gauge

    BESTfit 5 OD X 18 Inch Aluminized Internal Muffler / Baffle -16 Gauge

    BESTFIT TRUCK PARTS

    $69.76
    BESTfit Type 1 A 16 Gauge Aluminized Steel Internal MufflerThis high-performance internal muffler is designed for 36-inch straight stacks, fitting into the bottom for efficient operation on older mechanical pump engines. It is not compatible with newer...
    09-080200006
    SKU:
    09-080200006
    Diameter Options:
    5 Inch
    Truck Class:
    Universal
    Length Options:
    18 Inch
    Material Options:
    Aluminized Steel
    Make:
    Universal Items
    Product Type:
    Exhaust
    $69.76
    Qty in Cart: 0
    Price:
    $69.76
    Subtotal:
  • BESTfit 4 X 18 Inch Aluminized Steel Internal Muffler 16 Gauge

    BESTfit 4 X 18 Inch Aluminized Steel Internal Muffler 16 Gauge

    BESTFIT TRUCK PARTS

    $64.66
    BESTfit Internal Exhaust Baffle TubeExperience the superior quality of the BESTfit 4 X 18 Inch 16 Gauge Aluminized Steel Internal Muffler from 4 State Trucks. This premium internal muffler, made from 16 gauge aluminized steel, offers unmatched durability...
    09-080200005
    SKU:
    09-080200005
    Truck Class:
    Universal
    Diameter Options:
    4 Inch
    Length Options:
    18 Inch
    Material Options:
    Aluminized Steel
    Make:
    Universal Items
    Product Type:
    Exhaust
    $64.66
    Qty in Cart: 0
    Price:
    $64.66
    Subtotal:
  • BESTfit 8 Inch Diameter Powerflow Muffler Type 1 4 ID / ID X 21 Inch OAL

    BESTfit 8 Inch Diameter Powerflow Muffler Type 1 4 ID / ID X 21 Inch OAL

    BESTFIT TRUCK PARTS

    $159.99
    BESTfit 4 Inch In/Out X 8 X 21 Inch Aluminized Steel Type 1 MufflerDiscover the superior performance of the BESTfit 4 Inch In/Out X 8 X 21 Inch Aluminized Steel Type 1 Muffler, designed for those who demand durability in their exhaust. Made from...
    09-080200004
    SKU:
    09-080200004
    Truck Class:
    Universal
    Diameter Options:
    4 Inch
    Length Options:
    21 1/2 Inch
    Material Options:
    Aluminized Steel
    Make:
    Universal Items
    Product Type:
    Exhaust
    $159.99
    Qty in Cart: 0
    Price:
    $159.99
    Subtotal:
  • BESTfit 8 Inch Diameter Muffler Type 1 4 ID / 5 ID X 21 Inch OAL

    BESTfit 8 Inch Diameter Muffler Type 1 4 ID / 5 ID X 21 Inch OAL

    BESTFIT TRUCK PARTS

    $131.99
    BESTfit 4 Inch In X 5 Inch Out X 8 X 21 Inch Aluminized Steel Type 1 MufflerBoost your truck's exhaust performance with the BESTfit 4 Inch In X 5 Inch Out X 8 X 21 Inch Aluminized Steel Type 1 Muffler from 4 State Trucks. Constructed from durable...
    09-080200003
    SKU:
    09-080200003
    Diameter Options:
    5 Inch
    Truck Class:
    Universal
    Length Options:
    21 Inch
    Material Options:
    Aluminized Steel
    Make:
    Universal Items
    Style Options:
    Angled
    Product Type:
    Exhaust
    $131.99
    Qty in Cart: 0
    Price:
    $131.99
    Subtotal:
  • 10 Inch Diameter Performance Muffler 6 ID / 6 ID X 51.5 Inch OAL

    10 Inch Diameter Performance Muffler 6 ID / 6 ID X 51.5 Inch OAL

    PITTSBURGH POWER

    $295.99
    High Performance Muffler Increases Horsepower, Mileage & Reduces Back PressureThe Performance Muffler, measuring 10 inches by 51.5 inches and featuring a 6-inch inlet and outlet, is designed to supercharge your vehicle's performance. By reducing exhaust...
    09-080200001
    SKU:
    09-080200001
    Diameter Options:
    6 Inch
    Truck Class:
    Universal
    Location:
    Made In USA
    Material Options:
    Steel
    Make:
    Universal Items
    Length Options:
    51 1/2 Inch
    Product Type:
    Exhaust
    $295.99
    Qty in Cart: 0
    Price:
    $295.99
    Subtotal:
  • 10-8 Inch Stainless Steel Long Drop Reducer Elbow

    10-8 Inch Stainless Steel Long Drop Reducer Elbow

    AMERICAN EAGLE EXHAUST

    $1,367.99
    10 To 8 Inch Stainless Steel Long Drop Reducer ElbowDiscover the ultimate upgrade for your exhaust with the 10-8 Inch Stainless Steel Long Drop Reducer Elbow. Constructed from high-quality stainless steel, this reducer elbow ensures longevity and...
    09-080100293
    SKU:
    09-080100293
    Style Options:
    Long Drop
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Diameter Options:
    10 Inch
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    $1,367.99
    Qty in Cart: 0
    Price:
    $1,367.99
    Subtotal:
  • 7-5 X 36 Inch Chrome-Plated Steel Miter Cut Top Stack by BESTfit

    7-5 X 36 Inch Chrome-Plated Steel Miter Cut Top Stack by BESTfit

    BESTFIT TRUCK PARTS

    $467.99
    BESTfit 7-5 X 36 Inch Chrome-Plated Steel Miter Cut Top StackTransform your vehicle's exhaust system with the BESTfit 7-5 X 36 Inch Miter Cut Top Stack from 4 State Trucks. Designed from robust chrome plated steel, this miter cut top stack ensures a...
    09-080100289
    SKU:
    09-080100289
    Truck Class:
    Universal
    Diameter Options:
    7 Inch
    Location:
    Made In USA
    Length Options:
    36 Inch
    Style Options:
    Miter Cut
    Material Options:
    Steel
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Product Type:
    Exhaust
    $467.99
    Qty in Cart: 0
    Price:
    $467.99
    Subtotal:
  • 7-5 X 60 Inch Chrome-Plated Steel Curved Stack By BESTfit

    7-5 X 60 Inch Chrome-Plated Steel Curved Stack By BESTfit

    BESTFIT TRUCK PARTS

    $909.99
    BESTfit 7-5 X 60 Inch Chrome-Plated Steel Curved StackTransform your truck's exhaust system with the BESTfit 7-5 X 60 Inch Chrome-Plated Steel Curved Stack, the ultimate upgrade for owners seeking both superior sound and style. Expertly crafted from...
    09-080100284
    SKU:
    09-080100284
    Diameter Options:
    7 Inch
    Truck Class:
    Universal
    Length Options:
    60 Inch
    Location:
    Made In USA
    Material Options:
    Steel
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Style Options:
    Curve Turn
    Product Type:
    Exhaust
    $909.99
    Qty in Cart: 0
    Price:
    $909.99
    Subtotal:
  • 7-5 X 48 Inch Chrome-Plated Steel Curved Top Stack By BESTfit

    7-5 X 48 Inch Chrome-Plated Steel Curved Top Stack By BESTfit

    BESTFIT TRUCK PARTS

    $798.99
    BESTfit 7-5 X 48 Inch Chrome-Plated Steel Curved Top StackUpgrade your exhaust with the BESTfit 7-5 x 48 Inch Chrome-Plated Steel Curved Top Stack, available at 4 State Trucks. This exhaust stack is designed to bring out a deeper, more assertive rumble...
    09-080100283
    SKU:
    09-080100283
    Diameter Options:
    7 Inch
    Truck Class:
    Universal
    Length Options:
    48 Inch
    Location:
    Made In USA
    Material Options:
    Steel
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Style Options:
    Curve Turn
    Product Type:
    Exhaust
    $798.99
    Qty in Cart: 0
    Price:
    $798.99
    Subtotal:
  • 7-5 X 36 Inch Chrome-Plated Steel Curved Top Stack By BESTfit

    7-5 X 36 Inch Chrome-Plated Steel Curved Top Stack By BESTfit

    BESTFIT TRUCK PARTS

    $513.99
    BESTfit 7-5 X 36 Inch Chrome-Plated Steel Curved Top StackTransform your vehicle's exhaust system with the BESTfit 7-5 X 36 Inch Chrome-Plated Steel Curved Top Stack, a high-quality product designed to deliver both style and performance to your truck...
    09-080100282
    SKU:
    09-080100282
    Truck Class:
    Universal
    Diameter Options:
    7 Inch
    Length Options:
    36 Inch
    Location:
    Made In USA
    Material Options:
    Steel
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Style Options:
    Curve Turn
    Product Type:
    Exhaust
    $513.99
    Qty in Cart: 0
    Price:
    $513.99
    Subtotal:
  • 7-5 X 24 Inch Chrome-Plated Steel Curved Top Stack by BESTfit

    7-5 X 24 Inch Chrome-Plated Steel Curved Top Stack by BESTfit

    BESTFIT TRUCK PARTS

    $407.99
    BESTfit 7-5 X 24 Inch Chrome-Plated Steel Curved Top StackLooking to give your exhaust a powerful and aggressive sound? Look no further! 4 State Trucks presents this exceptional curved stack, specially designed to deliver a deep and rumbling exhaust note...
    09-080100281
    SKU:
    09-080100281
    Truck Class:
    Universal
    Length Options:
    24 Inch
    Location:
    Made In USA
    Material Options:
    Steel
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Diameter Options:
    7 Inch
    Style Options:
    Curve Turn
    Product Type:
    Exhaust
    $407.99
    Qty in Cart: 0
    Price:
    $407.99
    Subtotal:
  • 7-5 X 36 Inch Chrome-Plated Steel Bull Hauler Top Stack by BESTfit

    7-5 X 36 Inch Chrome-Plated Steel Bull Hauler Top Stack by BESTfit

    BESTFIT TRUCK PARTS

    $561.99
    Elevate your truck's appearance and performance with the BESTfit 7-5 X 36 Inch Chrome-Plated Steel Bull Hauler Top Stack. This top-quality exhaust stack is designed for truck owners who want the perfect balance of rugged durability and polished style...
    09-080100274
    SKU:
    09-080100274
    Diameter Options:
    7 Inch
    Truck Class:
    Universal
    Length Options:
    36 Inch
    Style Options:
    Bull Hauler Turn
    Material Options:
    Steel
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Product Type:
    Exhaust
    $561.99
    Qty in Cart: 0
    Price:
    $561.99
    Subtotal:
  • 7-5 X 36 Inch Chrome Steel Aussie Exhaust Stack by BESTfit

    7-5 X 36 Inch Chrome Steel Aussie Exhaust Stack by BESTfit

    BESTFIT TRUCK PARTS

    $510.99
    Make a statement on the road with the BESTfit 7-5 X 36 Inch Chrome Steel Aussie Exhaust Stack. Constructed from high-grade chrome-plated steel, this stack is engineered to withstand the toughest conditions while enhancing your vehicle's overall...
    09-080100268
    SKU:
    09-080100268
    Diameter Options:
    7 Inch
    Truck Class:
    Universal
    Length Options:
    36 Inch
    Style Options:
    Short 30 Turn
    Material Options:
    Steel
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Product Type:
    Exhaust
    $510.99
    Qty in Cart: 0
    Price:
    $510.99
    Subtotal:
  • 4 ID X 72 Inch Chrome-Plated Steel Flat Top Stack By BESTfit

    4 ID X 72 Inch Chrome-Plated Steel Flat Top Stack By BESTfit

    BESTFIT TRUCK PARTS

    $313.99
    BESTfit 4 Inch I.D. Inlet X 72 Inch Chrome-Plated Steel Flat Top StackDiscover the perfect blend of functionality and elegance with the BESTfit 4 Inch I.D. Inlet X 72 Inch Chrome-Plated Steel Flat Top Stack. This premium exhaust accessory, designed for...
    09-080100256
    SKU:
    09-080100256
    Truck Class:
    Universal
    Length Options:
    72 Inch
    Style Options:
    Flat Top
    Material Options:
    Steel
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Diameter Options:
    4 Inch
    Product Type:
    Exhaust
    $313.99
    Qty in Cart: 0
    Price:
    $313.99
    Subtotal:
  • 4 OD X 48 Inch Chrome-Plated Steel Flat Top Stack By BESTfit

    4 OD X 48 Inch Chrome-Plated Steel Flat Top Stack By BESTfit

    BESTFIT TRUCK PARTS

    $200.99
    BESTfit 4 Inch O.D. Inlet X 48 Inch Chrome-Plated Steel Flat Top StackGive your vehicle an instant upgrade with the BESTfit 4 Inch O.D. Inlet X 48 Inch Chrome-Plated Steel Flat Top Stack, expertly crafted in the USA. Made from top-grade chrome-plated...
    09-080100254
    SKU:
    09-080100254
    Truck Class:
    Universal
    Diameter Options:
    4 Inch
    Length Options:
    48 Inch
    Location:
    Made In USA
    Style Options:
    Flat Top
    Material Options:
    Steel
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Product Type:
    Exhaust
    $200.99
    Qty in Cart: 0
    Price:
    $200.99
    Subtotal:
  • 4 OD X 24 Inch Chrome-Plated Steel Flat Top Stack by BESTfit

    4 OD X 24 Inch Chrome-Plated Steel Flat Top Stack by BESTfit

    BESTFIT TRUCK PARTS

    $121.99
    BESTfit 4 Inch O.D. Inlet X 24 Inch Chrome-Plated Steel Flat Top StackMake your truck stand out with the BESTfit 4 Inch O.D. Inlet X 24 Inch Chrome-Plated Steel Flat Top Stack. Made from high-quality chrome-plated steel, this stack offers both durability...
    09-080100251
    SKU:
    09-080100251
    Truck Class:
    Universal
    Diameter Options:
    4 Inch
    Length Options:
    24 Inch
    Style Options:
    Flat Top
    Material Options:
    Steel
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Product Type:
    Exhaust
    $121.99
    Qty in Cart: 0
    Price:
    $121.99
    Subtotal:
  • 5 ID X 72 Inch Chrome-Plated Steel Miter Cut Stack by BESTfit

    5 ID X 72 Inch Chrome-Plated Steel Miter Cut Stack by BESTfit

    BESTFIT TRUCK PARTS

    $401.99
    BESTfit 5 Inch ID Inlet X 72 Inch Chrome-Plated Steel Miter Cut StackElevate your truck's exhaust system with the BESTfit 5 Inch ID Inlet X 72 Inch Chrome-Plated Steel Miter Cut Stack. Constructed with precision from chrome-plated steel, this stack is...
    09-080100246
    SKU:
    09-080100246
    Truck Class:
    Universal
    Diameter Options:
    5 Inch
    Length Options:
    72 Inch
    Style Options:
    Miter Cut
    Material Options:
    Steel
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Product Type:
    Exhaust
    $401.99
    Qty in Cart: 0
    Price:
    $401.99
    Subtotal:
  • 4 OD X 72 Inch Chrome-Plated Steel Curved Top Stack By BESTfit

    4 OD X 72 Inch Chrome-Plated Steel Curved Top Stack By BESTfit

    BESTFIT TRUCK PARTS

    $295.99
    BESTfit 4 Inch O.D. Inlet X 72 Inch Chrome-Plated Steel Curved Top StackMake your truck's exhaust system a work of art with the BESTfit 4 Inch O.D. Inlet X 72 Inch Chrome-Plated Steel Curved Top Stack. Crafted from chrome-plated steel, this stack ensures...
    09-080100236
    SKU:
    09-080100236
    Truck Class:
    Universal
    Diameter Options:
    4 Inch
    Length Options:
    72 Inch
    Material Options:
    Steel
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Style Options:
    Curve Turn
    Product Type:
    Exhaust
    $295.99
    Qty in Cart: 0
    Price:
    $295.99
    Subtotal:
  • 4 ID X 72 Inch Chrome-Plated Steel Curved Top Stack By BESTfit

    4 ID X 72 Inch Chrome-Plated Steel Curved Top Stack By BESTfit

    BESTFIT TRUCK PARTS

    $301.99
    BESTfit 4 Inch ID Inlet X 72 Inch Chrome-Plated Steel Curved Top StackUpgrade your exhaust system with the BESTfit 4 Inch ID Inlet X 72 Inch Chrome-Plated Steel Curved Top Stack ? perfect for those who appreciate top-notch quality and style. Formed from...
    09-080100235
    SKU:
    09-080100235
    Truck Class:
    Universal
    Diameter Options:
    4 Inch
    Length Options:
    72 Inch
    Material Options:
    Steel
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Style Options:
    Curve Turn
    Product Type:
    Exhaust
    $301.99
    Qty in Cart: 0
    Price:
    $301.99
    Subtotal:
  • 4 ID X 60 Inch Chrome-Plated Steel Curved Top Stack By BESTfit

    4 ID X 60 Inch Chrome-Plated Steel Curved Top Stack By BESTfit

    BESTFIT TRUCK PARTS

    $269.99
    BESTfit 4 Inch ID Inlet X 60 Inch Chrome-Plated Steel Curved Top StackTransform your vehicle's exhaust system with the BESTfit 4 Inch ID Inlet X 60 Inch Chrome-Plated Steel Curved Top Stack, a top-tier product that combines quality and style. Crafted...
    09-080100234
    SKU:
    09-080100234
    Diameter Options:
    4 Inch
    Truck Class:
    Universal
    Length Options:
    60 Inch
    Material Options:
    Steel
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Style Options:
    Curve Turn
    Product Type:
    Exhaust
    $269.99
    Qty in Cart: 0
    Price:
    $269.99
    Subtotal:
  • Total: items /

Adding your products to cart

Peterbilt Exhaust Parts

If you drive a Peterbilt 379, 389, 378, or 359, your truck deserves more than just stock parts. Our aftermarket Peterbilt exhaust components are built to handle the demands of the open road—while giving your rig a clean, bold exterior look that commands attention.

Why Invest in Aftermarket Peterbilt Exhaust Parts?

- Boost Performance: Precision-engineered elbows, Y-pipes, and stack kits improve exhaust flow for better fuel efficiency and horsepower. - Customize Your Look: Choose from chrome or stainless steel stacks, tips, and brackets to match your rig’s personality. - Fight Corrosion: Durable, high-grade materials resist rust and road grime—keeping your setup sharp for the long haul. - Easy Upgrades: Bolt-on kits and replacement parts make installs fast, simple, and frustration-free. - Built for the Long Haul: Aftermarket parts often outlast stock components and are designed with real trucker feedback in mind.

Get a Full Exhaust System Upgrade

- Exhaust Stacks & Kits: Go with a straight cut, bull hauler, or turnout style for head-turning curb appeal. - Clamps, Brackets & Hangers: Heavy-duty fasteners that keep your system tight, quiet, and rattle-free. - Elbows & Y-Pipes: Optimize backpressure and performance where it matters most—under load. - Exhaust Tips & Accessories: Polish off your build with sleek chrome or stainless accents. - Complete Systems: All-in-one kits with everything you need for a full replacement or upgrade.

Shop for Replacement Exhaust Components Today

Expand your exhaust upgrades with related performance enhancements like new and improved Peterbilt charge air coolers or frame and chassis parts for more stable exhaust mounting. Whether you’re fixing a damaged pipe or customizing a show-ready big rig from the ground up, we’ve got the aftermarket Peterbilt exhaust parts to match your performance goals and style preferences.

Introducing the Official 4 State Trucks Mobile App – Gear Up On the Go!