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3 Inch Exhaust Stacks

Upgrade your rig with a 3-inch semi-truck exhaust stack pipes. Improve flow, boost performance, and get that deep, powerful exhaust note. Perfect for heavy-duty trucks. Check compatibility before installing. Elevate your truck game today at 4 State Trucks!
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  • 3.5 Inch X 4 Ft 6 Gauge Aluminized Steel Tube - P206337, P20637

    3.5 Inch X 4 Ft 6 Gauge Aluminized Steel Tube - P206337, P20637

    AFTERMARKET

    $61.99
    Straight Tubing 3.5 Inch x 4 Foot Aluminized* High Quality Tube* Aluminized Steel* Dimensions:  - 3.50 Inch Diameter  - 48 Inch Length* 16 Gauge * 0.065 Inch Wall* Made In USA* Sold Individually*...
    09-08010047
    SKU:
    09-08010047
    Truck Class:
    Heavy Duty
    Length Options:
    4 Inch
    Diameter Options:
    3 1/2 Inch
    Make:
    Universal Items
    Product Type:
    Exhaust
    Material Options:
    Aluminized Steel
    $61.99
    Qty in Cart: 0
    Price:
    $61.99
    Subtotal:
  • 3 Inch X 10 Ft 6 Gauge Aluminized Steel Tube

    3 Inch X 10 Ft 6 Gauge Aluminized Steel Tube

    AFTERMARKET

    $165.99
    Aluminized Straight Tubing 3 Inch x 10 Ft* High Quality Tubing* Aluminized Steel* Dimensions:  - 3 Inch Diameter  - 10 Foot Length* 16 Gauge* 0.065 Inch Wall* Made In USA* Sold Individually* Warranty...
    09-08010049
    SKU:
    09-08010049
    Diameter Options:
    3 Inch
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Exhaust
    Material Options:
    Aluminized Steel
    $165.99
    Qty in Cart: 0
    Price:
    $165.99
    Subtotal:
  • 3 Inch ID Chrome-Plated Steel Curved Top Stack by BESTfit

    3 Inch ID Chrome-Plated Steel Curved Top Stack by BESTfit

    BESTFIT TRUCK PARTS

    $100.99 - $137.99
    Enhance your exhaust system with the BESTfit 3-inch ID inlet chrome-plated steel curved top stack. Available in multiple lengths such as 12-inch and 24-inch options, this stack features a 3-inch...
    PPR_203235
    SKU:
    PPR_203235
    Diameter Options:
    3 Inch
    Truck Class:
    Universal
    Material Options:
    Steel
    Finish Options:
    Chrome-Plated
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Exhaust
    Style Options:
    Curve Turn
    $100.99 - $137.99
    Qty in Cart: 0
    Price:
    $100.99 - $137.99
    Subtotal:
  • 3 OD X 12 Inch Chrome-Plated Steel Curve Top Stack by BESTfit

    3 OD X 12 Inch Chrome-Plated Steel Curve Top Stack by BESTfit

    BESTFIT TRUCK PARTS

    $115.99
    BESTfit 3 Inch O.D. X 12 Inch Chrome-Plated Steel Curve Top Stack* High Quality Stack* Curved Top Style* Chrome-Plated Steel* Dimensions:  - 3 Inch OD Inlet  - 12 Inch Length* Made in The USA* Sold...
    09-083012174
    SKU:
    09-083012174
    Truck Class:
    Universal
    Diameter Options:
    3 Inch
    Length Options:
    12 Inch
    Material Options:
    Steel
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Style Options:
    Curve Turn
    Product Type:
    Exhaust
    $115.99
    Qty in Cart: 0
    Price:
    $115.99
    Subtotal:
  • 3 OD X 24 Inch Chrome-Plated Steel Curved Top Stack by BESTfit

    3 OD X 24 Inch Chrome-Plated Steel Curved Top Stack by BESTfit

    BESTFIT TRUCK PARTS

    $139.99
    BESTfit 3 Inch O.D. Inlet X 24 Inch Chrome-Plated Steel Curved Top Stack* High Quality Stack* Chrome-Plated Steel* Dimensions  - 3 Inch Diameter  - 24 Inch Length* Curved Top* Hardware Not Included*...
    09-080100222
    SKU:
    09-080100222
    Truck Class:
    Universal
    Diameter Options:
    3 Inch
    Length Options:
    24 Inch
    Material Options:
    Steel
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Style Options:
    Curve Turn
    Product Type:
    Exhaust
    $139.99
    Qty in Cart: 0
    Price:
    $139.99
    Subtotal:
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Looking to give your rig a performance edge and a sharper look? Our 3-inch aftermarket semi truck exhaust stacks are a great place to start. These compact yet efficient stacks are perfect for drivers who want clean airflow, reliable heat control, and a tighter custom setup on their rig.

Why Upgrade with 3-Inch Chrome Stacks?

- Better exhaust flow for improved engine performance - Sleek profile — perfect for tight mounting spaces - Lighter weight without sacrificing durability - Custom look with a classic or modern twist Whether you prefer straight-cut or curved top styles, we’ve got the right stack to match your setup. Each stack is crafted from heavy-duty stainless or aluminized steel, giving you long-lasting resistance to corrosion, heat, and road wear. Key Features: - Available in multiple lengths and finishes - Built for heat resistance and high-temp performance - Compatible with many OEM and aftermarket exhaust systems - Easy to install with bolt-on compatibility - Works great as a single or dual exhaust setup These 3-inch stacks might be small in diameter, but they pack a punch. Whether you're rebuilding your exhaust system or just adding some style, this is a solid, dependable upgrade for your commercial semi truck.

Frequently Asked Questions About 3 Inch Exhaust Stacks

What are 3 inch exhaust stacks used for on a semi-truck?

3 inch exhaust stacks are the vertical exhaust pipes mounted behind the cab that carry exhaust gases up and away from the engine and cab area. They are typically used on trucks with smaller displacement engines or lighter-duty applications where a 3 inch diameter provides sufficient exhaust flow, and they also serve as a visual styling upgrade for many truck owners.

Will a 3 inch stack fit my truck, or do I need to match my existing pipe diameter?

Fit depends on matching the stack diameter to your truck's existing exhaust piping or elbow, as well as the mounting bracket and clamp configuration on your chassis. Before ordering, measure your current stack or exhaust outlet diameter and check the stack length and bracket style needed for your specific make and model to ensure a proper connection.

What materials and finishes are available, and how do they hold up over time?

3 inch exhaust stacks are commonly available in aluminized steel, stainless steel, and chrome-plated finishes. Aluminized steel offers good heat and corrosion resistance at a lower cost, stainless steel provides longer-lasting corrosion resistance especially in road salt or moisture-heavy climates, and chrome finishes add a polished look but may require more regular cleaning to prevent staining or discoloration from heat cycling.

How do I install a replacement exhaust stack, and can I do it myself?

Most exhaust stacks are installed using clamps or slip-fit connections at the elbow or muffler outlet, along with mounting brackets that secure the stack to the cab or frame. Many truck owners install these themselves with basic hand tools, but you should ensure the stack is properly seated, clamped tight, and supported to prevent rattling, leaks, or stress on the connection points, especially over rough roads.

Are there length or height regulations I need to be aware of when choosing a stack?

Some states and jurisdictions have regulations regarding exhaust stack height and how far exhaust must be directed away from the cab or nearby vehicles, so it's a good idea to check your local and DOT regulations before selecting a stack length. Additionally, consider bridge and garage clearance heights in your regular routes, since a taller stack can affect overall vehicle height.


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