null
Chrome Rush countdown – 14% off semi truck parts and chrome accessories at 4 State Trucks
Chrome Rush countdown – 14% off semi truck parts and chrome accessories at 4 State Trucks

Exhaust

Shop semi truck exhaust parts and heavy-duty exhaust accessories to maintain or upgrade your big truck exhaust system. Browse replacement y-pipes, elbows, adapters, reducers, flex tubing, mufflers, clamps, and brackets.
  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • BESTfit 8 X 120 Inch Galvanized Flex Hose Coils

    BESTfit 8 X 120 Inch Galvanized Flex Hose Coils

    BESTFIT TRUCK PARTS

    $192.99
    8 Inch Diameter Galvanized Flexible Pre-Cut Metal Hose Coils* High Quality Hose Coils* Galvanized* Dimensions:  - 120 Inch Length   - 8 Inch Diameter* Flexible* Pre-Cut Metal Hose Coils* Made In USA*...
    09-080481205
    SKU:
    09-080481205
    Product Type:
    Exhaust
    Finish Options:
    Galvanized
    Length Options:
    120 Inch
    Diameter Options:
    8 Inch
    Make:
    Universal Items
    $192.99
    Qty in Cart: 0
    Price:
    $192.99
    Subtotal:
  • BESTfit 4.5 To 4 Inch ID / OD Exhaust Pipe Reducer

    BESTfit 4.5 To 4 Inch ID / OD Exhaust Pipe Reducer

    BESTFIT TRUCK PARTS

    $63.79
    Pipe Reducer 4 1/2 In ID Reduced to 4 in ID* High Quality Exhaust Pipe Reducer* Made Of Aluminized Steel* 4.5 Inch ID Reduced To 4 Inch OD* Made In USA* Sold Individually* Warranty On Exhaust Pipe...
    09-08010352
    SKU:
    09-08010352
    Product Type:
    Exhaust
    Material Options:
    Aluminized Steel
    Make:
    Universal Items
    $63.79
    Qty in Cart: 0
    Price:
    $63.79
    Subtotal:
  • BESTfit 4 Inch Polished Stainless Band Exhaust Clamp - 1.25 Inch Wide

    BESTfit 4 Inch Polished Stainless Band Exhaust Clamp - 1.25 Inch Wide

    BESTFIT TRUCK PARTS

    $14.99
    Polished Stainless Steel Band Clamp* High Quality Clamp* 430 Stainless Steel* Polished Finish* Dimensions:  - 4 Inch Diameter  - 1.25 Inch Wide Clamp* Made In USA* Sold Individually* Warranty On...
    09-08000023
    SKU:
    09-08000023
    Product Type:
    Exhaust
    Diameter Options:
    4 Inch
    Finish Options:
    Polished
    Width Options:
    1 1/4 Inch
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    $14.99
    Qty in Cart: 0
    Price:
    $14.99
    Subtotal:
  • BESTfit 9 Inch Diameter Type 1 Muffler With 5 Inch ID / ID

    BESTfit 9 Inch Diameter Type 1 Muffler With 5 Inch ID / ID

    BESTFIT TRUCK PARTS

    $184.99
    Universal Economy Standard Style Muffler* High Quality Muffler* Dimensions:  - 5 Inch Id/ID  - 9 Inch Body Diameter   - 44.5 Inch Body Length   - 51 Inch Overall Length* Made In USA* Sold...
    09-08020052
    SKU:
    09-08020052
    Product Type:
    Exhaust
    Diameter Options:
    5 Inch
    Length Options:
    51 Inch
    Make:
    Universal Items
    $184.99
    Qty in Cart: 0
    Price:
    $184.99
    Subtotal:
  • BESTfit 4 To 2.5 Inch OD / ID Aluminized Exhaust Reducer Pipe

    BESTfit 4 To 2.5 Inch OD / ID Aluminized Exhaust Reducer Pipe

    BESTFIT TRUCK PARTS

    $31.00
    Heavy Duty OD to ID Reducer* High Quality Exhaust Pipe Reducer* Made Of Aluminized Steel* 4 Inch OD To 2.5 Inch ID* 8 Inch Height* Made In USA* Sold Individually* Warranty On Exhaust Pipe Reducers...
    09-08011711
    SKU:
    09-08011711
    Product Type:
    Exhaust
    Height Options:
    8 Inch
    Material Options:
    Aluminized Steel
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $31.00
    Qty in Cart: 0
    Price:
    $31.00
    Subtotal:
  • BESTfit 5 OD X 28 Inch Chrome 3 Bend Miter Top Exhaust Stack For Dump Truck

    BESTfit 5 OD X 28 Inch Chrome 3 Bend Miter Top Exhaust Stack For Dump Truck

    BESTFIT TRUCK PARTS

    $418.99
    3 Bend Dump Truck StackLooking for dump truck exhaust stacks? This BESTfit 5-inch chrome exhaust stack gives your truck that perfect custom look. It features a clean miter cut top with a smooth...
    09-08010303
    SKU:
    09-08010303
    Product Type:
    Exhaust
    Diameter Options:
    5 Inch
    Finish Options:
    Chrome-Plated
    Style Options:
    Miter Cut
    Make:
    Universal Items
    $418.99
    Qty in Cart: 0
    Price:
    $418.99
    Subtotal:
  • BESTfit 5 Inch ID/OD 90 Degree Stainless Steel Elbow Exhaust Pipe 15 X 15 Inch

    BESTfit 5 Inch ID/OD 90 Degree Stainless Steel Elbow Exhaust Pipe 15 X 15 Inch

    BESTFIT TRUCK PARTS

    $179.99
    5 Inch ID / OD Diameter 90 Degree Elbow Pipe* High Quality Elbow Pipe* Stainless Steel* 5 In I.D/O.D Diameter* 90 Degree* Made In USA* Sold Individually* Warranty On Elbow Pipes Against Defects In...
    09-08011712
    SKU:
    09-08011712
    Product Type:
    Exhaust
    Degree Options:
    90
    Diameter Options:
    5 Inch
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $179.99
    Qty in Cart: 0
    Price:
    $179.99
    Subtotal:
  • BESTfit 3 Inch Preformed Stainless Lap Joint Exhaust Clamp

    BESTfit 3 Inch Preformed Stainless Lap Joint Exhaust Clamp

    BESTFIT TRUCK PARTS

    $17.99
    Flexible Wide Band Exhaust Clamp - Joins ID & OD PipeThis 360-degree sealing wide-band lap-joint exhaust clamp connects pipes and mufflers securely for a leak free seal. Pre-assembled design...
    09-08000178
    SKU:
    09-08000178
    Product Type:
    Exhaust
    Material Options:
    Stainless Steel
    Width Options:
    3 Inch
    Make:
    Universal Items
    $17.99
    Qty in Cart: 0
    Price:
    $17.99
    Subtotal:
  • BESTfit 3 Inch 304 SS Lap Joint Exhaust Band Clamp

    BESTfit 3 Inch 304 SS Lap Joint Exhaust Band Clamp

    BESTFIT TRUCK PARTS

    $19.99
    Heavy Duty Exhaust Clamp for 3 Inch ID and OD Pipe ConnectionsThe 3 inch stainless steel exhaust band clamp makes connecting exhaust pipes simple and secure. Built from premium 304 stainless steel...
    09-08000117
    SKU:
    09-08000117
    Product Type:
    Exhaust
    Width Options:
    3 Inch
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    $19.99
    Qty in Cart: 0
    Price:
    $19.99
    Subtotal:
  • BESTfit 5 OD/ID X 15 Inch Aluminized Steel 45 Degree Exhaust Elbow

    BESTfit 5 OD/ID X 15 Inch Aluminized Steel 45 Degree Exhaust Elbow

    BESTFIT TRUCK PARTS

    $64.81
    Replacement 45 Degree Exhaust Elbow* High Quality Elbow* Aluminized Steel* Dimensions:  - 5 Inch ID/OD  - 15 Inch Length  - 6 Inch Centerline Radius* 45 Degree* Made In USA* Sold Individually*...
    09-08010340
    SKU:
    09-08010340
    Product Type:
    Exhaust
    Degree Options:
    45
    Diameter Options:
    5 Inch
    Material Options:
    Stainless Steel
    Length Options:
    15 Inch
    Make:
    Universal Items
    $64.81
    Qty in Cart: 0
    Price:
    $64.81
    Subtotal:
  • BESTfit 8 Inch Chrome Flat Band Exhaust Clamp

    BESTfit 8 Inch Chrome Flat Band Exhaust Clamp

    BESTFIT TRUCK PARTS

    $65.99
    Chrome Flat Band Clamp* High Quality Flat Band Clamp* Chrome-Plated * 8 Inch * Flat* Sold Individually* Warranty On Band Clamps Against Defects In Workmanship & Material From Date Of Purchase*** High...
    09-080045
    SKU:
    09-080045
    Product Type:
    Exhaust
    Finish Options:
    Chrome-Plated
    Style Options:
    Flat
    Diameter Options:
    8 Inch
    Make:
    Universal Items
    $65.99
    Qty in Cart: 0
    Price:
    $65.99
    Subtotal:
  • BESTfit 4 Inch ID / OD Aluminized 3 Bend Exhaust Pipe For International S1700-S1900, S2100-S2300, S2200-S2600

    BESTfit 4 Inch ID / OD Aluminized 3 Bend Exhaust Pipe For International S1700-S1900, S2100-S2300, S2200-S2600

    BESTFIT TRUCK PARTS

    $170.99
    Model 3900 Front Engine Chassis With DT466 Diesel Exhaust Pipe* High Quality Exhaust Pipe* 3 Bend* Made Of Aluminized Steel* 4 Inch ID/OD* Made In USA* Sold Individually* Warranty On Exhaust Pipes...
    07-080700028
    SKU:
    07-080700028
    Product Type:
    Exhaust
    Diameter Options:
    4 Inch
    Material Options:
    Aluminized Steel
    Make:
    International
    $170.99
    Qty in Cart: 0
    Price:
    $170.99
    Subtotal:
  • BESTfit 5 To 4 Inch OD Aluminized Lower Exhaust Stack

    BESTfit 5 To 4 Inch OD Aluminized Lower Exhaust Stack

    $65,536.00
    Lower Exhaust Stack - 5 Inch Reduced to 4 Inch OD* High Quality Exhaust Stack* Aluminized * 5 To 4 Inch OD* Lower* Sold Individually* Warranty On Exhaust Stacks Against Defects In Workmanship &...
    07-081152IH-71527C170
    SKU:
    07-081152IH-71527C170
    $65,536.00
    Qty in Cart: 0
    Price:
    $65,536.00
    Subtotal:
  • BESTfit 6 OD To 5 Inch OD Chrome 100 Degree Exhaust Elbow Pipe 04-12099-001 For Freightliner

    BESTfit 6 OD To 5 Inch OD Chrome 100 Degree Exhaust Elbow Pipe 04-12099-001 For Freightliner

    BESTFIT TRUCK PARTS

    $379.99
    Freightliner Replacement 6 Inch OD Chrome Elbow Reduced to 5 Inch OD* High Quality Exhaust Elbow* 100 Degree Angle* Made Of Chrome-Plated Steel* 6 Inch OD Reducted To 5 Inch OD* Made In USA* Sold...
    03-08070079
    SKU:
    03-08070079
    Product Type:
    Exhaust
    Finish Options:
    Chrome-Plated
    Degree Options:
    100
    Material Options:
    Steel
    Diameter Options:
    6 To 5 Inch
    Make:
    Freightliner
    $379.99
    Qty in Cart: 0
    Price:
    $379.99
    Subtotal:
  • BESTfit 4 Inch Aluminized 2 Bend Exhaust Pipe With Flange For Kenworth

    BESTfit 4 Inch Aluminized 2 Bend Exhaust Pipe With Flange For Kenworth

    BESTFIT TRUCK PARTS

    $155.99
    Kenworth 2 Bend Exhaust Pipe* High Quality Exhaust Pipe* 2 Bends* Flared Ends* Made In USA* Sold Individually* Warranty On Exhaust Pipes Against Defects In Workmanship & Material From Date Of...
    02-08070053
    SKU:
    02-08070053
    Product Type:
    Exhaust
    Material Options:
    Aluminized Steel
    Make:
    Kenworth
    $155.99
    Qty in Cart: 0
    Price:
    $155.99
    Subtotal:
  • BESTfit Chrome 7 to 5 Inch Multi Bend Elbow Passenger Side M661271RCP For Kenworth T800 & W900L/B AeroCab

    BESTfit Chrome 7 to 5 Inch Multi Bend Elbow Passenger Side M661271RCP For Kenworth T800 & W900L/B AeroCab

    BESTFIT TRUCK PARTS

    $617.99
    Chrome 7 to 5 Inch Multi Bend Elbow Passenger Side M661271RCP By BestFit Fits Kenworth T800 & W900L/B AeroCab* High Quality Exhaust Elbow* Made Of Chrome Plated Steel* Multi-Bend Design* Designed For...
    02-087512711
    SKU:
    02-087512711
    Finish Options:
    Chrome-Plated
    Material Options:
    Steel
    Position:
    Passenger Side
    Make:
    Kenworth
    Ready To Ship:
    Yes
    Product Type:
    Exhaust
    $617.99
    Qty in Cart: 0
    Price:
    $617.99
    Subtotal:
  • BESTfit 7 Inch Chrome 90 Degree Retro Long Drop Elbow 18 x 39 Inch For Peterbilt

    BESTfit 7 Inch Chrome 90 Degree Retro Long Drop Elbow 18 x 39 Inch For Peterbilt

    BESTFIT TRUCK PARTS

    $683.99
    Replacement Peterbilt Retro 90 Degree Chrome Long Drop ElbowThe BESTfit 7 Inch Chrome 90 Degree Retro Long Drop Elbow is a high-quality exhaust component designed for Peterbilt trucks. Featuring a...
    01-08070080
    SKU:
    01-08070080
    Product Type:
    Exhaust
    Finish Options:
    Chrome-Plated
    Material Options:
    Steel
    Diameter Options:
    7 Inch
    Position:
    Kit Full
    Make:
    Peterbilt
    $683.99
    Qty in Cart: 0
    Price:
    $683.99
    Subtotal:
  • 7 Inch Chrome Narrow Style Cab Exhaust Clamp For Peterbilt

    7 Inch Chrome Narrow Style Cab Exhaust Clamp For Peterbilt

    UNITED PACIFIC

    $24.55
    Peterbilt Cab Mounting BracketUpgrade your Peterbilt cab exhaust system with this 7 Inch Chrome Narrow Style Cab Exhaust Clamp, engineered for durability and a precise fit. The chrome-plated surface...
    01-080015
    SKU:
    01-080015
    Material Options:
    Steel
    Product Type:
    Exhaust
    Length Options:
    7 Inch
    Finish Options:
    Chrome-Plated
    Make:
    Peterbilt
    $24.55
    Qty in Cart: 0
    Price:
    $24.55
    Subtotal:
  • BESTfit Upper Mount Exhaust Bushing Kit 11811, GAFF11811 For Peterbilt

    BESTfit Upper Mount Exhaust Bushing Kit 11811, GAFF11811 For Peterbilt

    BESTFIT TRUCK PARTS

    $45.69
    Upper Mount Exhaust Bushing Kit With Pivot BushingThe BESTfit Upper Mount Exhaust Bushing Kit is a high-quality replacement kit designed to secure and stabilize your Peterbilt exhaust system. This...
    01-080700013
    SKU:
    01-080700013
    Product Type:
    Exhaust
    Ready To Ship:
    Yes
    Position:
    Kit Full
    Make:
    Peterbilt
    $45.69
    Qty in Cart: 0
    Price:
    $45.69
    Subtotal:
  • BESTfit 5 Inch Stainless Steel Angled Exhaust Clamp For Peterbilt

    BESTfit 5 Inch Stainless Steel Angled Exhaust Clamp For Peterbilt

    BESTFIT TRUCK PARTS

    $136.99
    5 Inch Stainless Peterbilt Exhaust Clamp - Angled DesignNeed a strong exhaust clamp for your Pete? This 5-inch stainless clamp is built tough for Peterbilt stacks. The angled design matches your...
    01-08000020
    SKU:
    01-08000020
    Product Type:
    Exhaust
    Style Options:
    Angled
    Finish Options:
    Polished
    Material Options:
    Stainless Steel
    Make:
    Peterbilt
    Diameter Options:
    5 Inch
    $136.99
    Qty in Cart: 0
    Price:
    $136.99
    Subtotal:
  • Total: items /

Adding your products to cart

View Cart Continue Shopping

Shop Heavy Duty Semi Truck Exhaust Pipes

Your semi truck’s exhaust system does more than just move fumes out of the engineβ€”it plays a huge role in performance, emissions control, and style. That’s why we carry a massive selection of heavy-duty exhaust parts built to handle the toughest jobs on the road. Whether you have a Peterbilt, Freightliner, Volvo, or Kenworth, we have replacement components to get your exhaust system back in running order. Choose from polished chrome stacks to diesel particulate filter components, every piece is designed to help improve your exhaust flow, reduce emissions, and bolster your truck’s look.

Semi Truck Exhaust Pipes, Mufflers, Clamps & Fittings

Our online inventory includes: - Exhaust Stacks carry the exhaust up and away. They’re the most visible part and give your truck its look and sound. - Mufflers cut down noise and manage backpressure so your engine breathes right. Too much backpressure, and you lose horsepower. Too little, and the engine can struggle. - Exhaust Clamps lock pipes, stacks, and mufflers together. A loose clamp means leaks, rattles, and hot fumes under the cab. - Resonators fine-tune the sound. They don’t silence like a muffler but smooth out that sharp bark. - Exhaust Heat Shields protect paint, wiring, and fuel tanks from high exhaust temps. Without them, you risk blistered paint or worse. - Exhaust Brackets keep everything stable. They take the weight of those heavy chrome stacks and stop vibration from cracking your pipes. - Diesel Oxidation Catalysts (DOCs) and Diesel Particulate Filters (DPFs) are what keep your emissions system compliant. All of our commercial exhaust parts feature quick shipping, a workmanship warranty, and expert customer support. Whether you’re building an exhaust system from scratch or adding a fuel-efficient truck engine parts upgrade for your semi truck fuel system.

Exhaust Stacks for Visual Impact

Chrome stacks aren’t just for looks; they play a role in your truck’s sound profile based on diameter and shape: - Straight Cut: clean, simple look for a sharp and aggressive tone. - Miter Cut: sharply angled at the top to push fumes back and away. - Bull Cut: wide, flared tips for a deep, throaty rumbling tone. - West Coast Style Cut: bends exhaust flow backwards.

Upgrade Your Entire Exhaust System

From turbo connections to tall chrome stacks, we carry the semi truck exhaust parts to help your whole system perform better on the road. If you’re looking for better engine performance, fewer emissions, or a polished, custom lookβ€”we’ve got you covered.

Frequently Asked Questions About Semi-Truck Exhaust Parts

What size exhaust pipes and stacks do I need for my specific truck model?

The correct exhaust size depends on your truck's make, model, and engine specifications. Most Class 8 trucks use 5-inch diameter exhaust systems, but some require 4-inch or 6-inch setups. Check your existing exhaust diameter where it exits the turbo or DPF. For Peterbilt 379/389 models, 5-inch is standard. Kenworth W900 typically uses 5-inch, while some Volvo VNL models may use 4-inch. Always measure your current system or consult your truck's service manual to ensure proper fitment and avoid performance issues.

Will aftermarket exhaust parts void my truck's warranty or affect emissions compliance?

Installing aftermarket exhaust components behind the DPF/SCR system (such as stacks, elbows, and mufflers) will not void your warranty or affect emissions compliance. However, any modifications before the emissions equipment, including DPF deletes or EGR bypasses, are illegal for on-highway use and will void warranties. Stick to EPA-compliant parts that work with your existing emissions systems. Most chrome stacks, exhaust tips, and mufflers are completely legal as they don't alter emission controls.

How difficult is it to install exhaust stacks and elbows myself?

Basic exhaust stack installation typically takes 2-4 hours with standard tools. You'll need band clamps, a sawzall or exhaust cutter for trimming, and basic hand tools. The main challenges include proper alignment to avoid cab contact, securing heavy chrome stacks (some weigh 50+ pounds), and ensuring leak-free connections. Many drivers successfully complete this as a weekend project. However, if you need to modify exhaust routing or install new brackets, professional installation may be worth the investment to prevent exhaust leaks or damage.

What's the difference between 304 and 409 stainless steel exhaust parts?

304 stainless steel contains more chromium and nickel, providing superior corrosion resistance and maintaining its shine longer, but costs 30-40% more. 409 stainless is magnetic, may develop surface rust over time, but offers good durability at a lower price point. For trucks in northern states using road salt, 304 is recommended for longevity. Southern drivers or those wanting the best value often choose 409. Both grades handle exhaust temperatures well, so the choice mainly affects appearance longevity and corrosion resistance rather than performance.

Why do my chrome exhaust stacks keep turning blue or gold?

Bluing occurs when chrome is exposed to exhaust temperatures exceeding 800-900 degrees Fahrenheit, which is common during heavy loads or extended idling. This is cosmetic only and doesn't affect function. To minimize bluing, ensure proper exhaust flow without restrictions, avoid excessive idling, and consider heat shields or wrapped stacks. Some drivers prefer the blued look as it shows the truck is working hard. If appearance is critical, polished stainless steel stacks resist discoloration better than chrome-plated ones, though they cost more initially.

Steals & Deals Sign Up

Prefer to text? Receive exclusive deals by SMS*

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