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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

Freightliner Cabover Exhaust Parts

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  • BESTfit 3 ID/OD X 6 Inch Turbo Outlet Adapter For Detroit Diesel L V71

    BESTfit 3 ID/OD X 6 Inch Turbo Outlet Adapter For Detroit Diesel L V71

    BESTFIT TRUCK PARTS

    $22.83
    BESTfit 3 Inch I.D.-O.D. X 6 Inch OAL Aluminized Steel Type B Turbo Pipe With 3.62 Inch Diameter FlangeGet the perfect fit for a Detroit Diesel Turbo L V71 with this quality type B manifold outlet...
    09-080100187
    SKU:
    09-080100187
    Diameter Options:
    6 Inch
    Truck Class:
    Universal
    Length Options:
    6 Inch
    Style Options:
    Flanged
    Material Options:
    Aluminized Steel
    Make:
    Universal Items
    Product Type:
    Exhaust
    $22.83
    Qty in Cart: 0
    Price:
    $22.83
    Subtotal:
  • BESTfit Aluminized Exhaust Connector 5 OD X 5 OD X 8 Inch

    BESTfit Aluminized Exhaust Connector 5 OD X 5 OD X 8 Inch

    BESTFIT TRUCK PARTS

    $41.36
    BESTfit 5 Inch O.D.-O.D. X 8 Inch OAL Aluminized Steel Connector Pipe* High Quality Connector* Can Be Used To Join Flex Hose Together* Both Ends Have O.D. Connections* Made Of Durable 16 Gauge...
    09-080100186
    SKU:
    09-080100186
    Diameter Options:
    5 Inch
    Truck Class:
    Universal
    Length Options:
    8 Inch
    Material Options:
    Aluminized Steel
    Make:
    Universal Items
    Product Type:
    Exhaust
    $41.36
    Qty in Cart: 0
    Price:
    $41.36
    Subtotal:
  • BESTfit Aluminized Exhaust Connector 4 OD X 4 OD X 8 Inch

    BESTfit Aluminized Exhaust Connector 4 OD X 4 OD X 8 Inch

    BESTFIT TRUCK PARTS

    $37.13
    BESTfit 4 Inch O.D.-O.D. X 8 Inch OAL Aluminized Steel Connector Pipe* High Quality Connector* Can Be Used To Join Flex Hose Together* Both Ends Have O.D. Connections* Made Of Durable 16 Gauge...
    09-080100185
    SKU:
    09-080100185
    Truck Class:
    Universal
    Diameter Options:
    4 Inch
    Length Options:
    8 Inch
    Material Options:
    Aluminized Steel
    Make:
    Universal Items
    Product Type:
    Exhaust
    $37.13
    Qty in Cart: 0
    Price:
    $37.13
    Subtotal:
  • BESTfit 4 Inch OD-ID X 48 Inch 16 Gauge Aluminized Steel Tube

    BESTfit 4 Inch OD-ID X 48 Inch 16 Gauge Aluminized Steel Tube

    BESTFIT TRUCK PARTS

    $87.99
    BESTfit 4 Inch O.D.-I.D. X 48 Inch 16 Gauge Aluminized Steel TubeOptimize your vehicle's exhaust flow with the precision-crafted BESTfit 4 Inch O.D.-I.D. X 48 Inch 16 Gauge Aluminized Steel Tube...
    09-080100184
    SKU:
    09-080100184
    Diameter Options:
    4 Inch
    Length Options:
    48 Inch
    Material Options:
    Aluminized Steel
    Make:
    Universal Items
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    $87.99
    Qty in Cart: 0
    Price:
    $87.99
    Subtotal:
  • BESTfit 4 Inch OD-ID X 24 Inch 16 Gauge Aluminized Steel Tube

    BESTfit 4 Inch OD-ID X 24 Inch 16 Gauge Aluminized Steel Tube

    BESTFIT TRUCK PARTS

    $51.99
    BESTfit 4 Inch O.D.-I.D. X 24 Inch 16 Gauge Aluminized Steel TubeFor those in pursuit of an exhaust system modification, the BESTfit 4 Inch O.D.-I.D. X 24 Inch 16 Gauge Aluminized Steel Tube is the...
    09-080100183
    SKU:
    09-080100183
    Diameter Options:
    4 Inch
    Length Options:
    24 Inch
    Material Options:
    Aluminized Steel
    Make:
    Universal Items
    Truck Class:
    Heavy Duty
    Product Type:
    Exhaust
    $51.99
    Qty in Cart: 0
    Price:
    $51.99
    Subtotal:
  • On Sale
    Limited Quantity Available
    BESTfit Aluminized Exhaust Connector 3 OD X 3 OD X 8 Inch

    BESTfit Aluminized Exhaust Connector 3 OD X 3 OD X 8 Inch

    BESTFIT TRUCK PARTS

    Now: $5.27
    Was: $33.96
    BESTfit 3 Inch O.D.-O.D. X 8 Inch OAL Aluminized Steel Connector* High Quality Connector* Can Be Used To Join Flex Hose Together* Both Ends Have O.D. Connections* Made Of Durable 16 Gauge Aluminized...
    09-080100182
    SKU:
    09-080100182
    Diameter Options:
    3 Inch
    Truck Class:
    Universal
    Length Options:
    8 Inch
    Material Options:
    Aluminized Steel
    Make:
    Universal Items
    Product Type:
    Exhaust
    Ready To Ship:
    Yes
    Now: $5.27
    Was: $33.96
    Qty in Cart: 0
    Price:
    Now: $5.27
    Was: $33.96
    Subtotal:
  • BESTfit Aluminized Exhaust Connector 3-1/2 OD X 3-1/2 OD X 8 Inch

    BESTfit Aluminized Exhaust Connector 3-1/2 OD X 3-1/2 OD X 8 Inch

    BESTFIT TRUCK PARTS

    $34.63
    BESTfit 3.5 Inch O.D.-O.D. X 8 Inch OAL Aluminized Steel Connector* High Quality Connector* Can Be Used To Join Flex Hose Together* Both Ends Have O.D. Connections* Made Of Durable 16 Gauge...
    09-080100181
    SKU:
    09-080100181
    Truck Class:
    Universal
    Diameter Options:
    8 Inch
    Length Options:
    3 1/2 Inch
    Material Options:
    Aluminized Steel
    Make:
    Universal Items
    Product Type:
    Exhaust
    $34.63
    Qty in Cart: 0
    Price:
    $34.63
    Subtotal:
  • BESTfit Aluminized Exhaust Reducer 6 OD X 5 OD X 8 Inch

    BESTfit Aluminized Exhaust Reducer 6 OD X 5 OD X 8 Inch

    BESTFIT TRUCK PARTS

    $40.26
    BESTfit To 5 Inch OD-OD X 8 Inch OAL Aluminized Steel Reducer PipeAre you building a custom exhaust that requires different pipe sizes? 4 State Trucks offers this high quality reducer that is made to...
    09-080100170
    SKU:
    09-080100170
    Truck Class:
    Universal
    Diameter Options:
    6 Inch
    Length Options:
    8 Inch
    Material Options:
    Aluminized Steel
    Make:
    Universal Items
    Product Type:
    Exhaust
    $40.26
    Qty in Cart: 0
    Price:
    $40.26
    Subtotal:
  • BESTfit Chrome Exhaust Adapter Reducer 6 OD X 5 ID X 8 Inch

    BESTfit Chrome Exhaust Adapter Reducer 6 OD X 5 ID X 8 Inch

    BESTFIT TRUCK PARTS

    $106.99
    BESTfit 6 To 5 Inch O.D.-I.D. X 8 Inch OAL Chrome-Plated Steel Reducer PipeDoes your exhaust build have different size pipes? 4 State Trucks offers this high quality reducer that allows pipes of...
    09-080100169
    SKU:
    09-080100169
    Diameter Options:
    6 Inch
    Truck Class:
    Universal
    Length Options:
    8 Inch
    Material Options:
    Steel
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Product Type:
    Exhaust
    $106.99
    Qty in Cart: 0
    Price:
    $106.99
    Subtotal:
  • BESTfit Aluminized Exhaust Adapter Reducer 6 OD X 5 ID X 8 Inch

    BESTfit Aluminized Exhaust Adapter Reducer 6 OD X 5 ID X 8 Inch

    BESTFIT TRUCK PARTS

    $45.59
    BESTfit 6 To 5 Inch O.D.-I.D. X 8 Inch OAL Aluminized Steel Reducer PipeAre you building a custom exhaust that requires different pipe sizes? 4 State Trucks offers this high quality reducer that is...
    09-080100168
    SKU:
    09-080100168
    Diameter Options:
    6 Inch
    Truck Class:
    Universal
    Length Options:
    8 Inch
    Material Options:
    Aluminized Steel
    Make:
    Universal Items
    Product Type:
    Exhaust
    Ready To Ship:
    Yes
    $45.59
    Qty in Cart: 0
    Price:
    $45.59
    Subtotal:
  • BESTfit Aluminized Exhaust Adapter Reducer 6 OD X 4 OD X 8 Inch

    BESTfit Aluminized Exhaust Adapter Reducer 6 OD X 4 OD X 8 Inch

    BESTFIT TRUCK PARTS

    $53.99
    BESTfit 6 To 4 Inch O.D.-O.D. X 8 Inch OAL Aluminized Steel Reducer Pipehigh quality reducer that is made to smoothly connect pipes of different size on your exhaust. It is constructed with a premium...
    09-080100167
    SKU:
    09-080100167
    Truck Class:
    Universal
    Diameter Options:
    6 Inch
    Length Options:
    8 Inch
    Material Options:
    Aluminized Steel
    Make:
    Universal Items
    Product Type:
    Exhaust
    $53.99
    Qty in Cart: 0
    Price:
    $53.99
    Subtotal:
  • BESTfit Chrome Exhaust Adapter Reducer 6 ID X 5 OD X 8 Inch

    BESTfit Chrome Exhaust Adapter Reducer 6 ID X 5 OD X 8 Inch

    BESTFIT TRUCK PARTS

    $106.99
    BESTfit 6 To 5 Inch I.D.-O.D. X 8 Inch OAL Chrome-Plated Steel Reducer PipeIf you are looking to connect two different sized exhaust pipes, 4 State Trucks offers this high quality reducer that keeps...
    09-080100166
    SKU:
    09-080100166
    Truck Class:
    Universal
    Diameter Options:
    6 Inch
    Length Options:
    8 Inch
    Material Options:
    Steel
    Make:
    Universal Items
    Finish Options:
    Chrome-Plated
    Product Type:
    Exhaust
    Ready To Ship:
    Yes
    $106.99
    Qty in Cart: 0
    Price:
    $106.99
    Subtotal:
  • BESTfit Aluminized Exhaust Adapter Reducer 6 ID X 5 ID X 8 Inch

    BESTfit Aluminized Exhaust Adapter Reducer 6 ID X 5 ID X 8 Inch

    BESTFIT TRUCK PARTS

    $45.59
    BESTfit 6 To 5 Inch I.D.-I.D. X 8 Inch OAL Aluminized Steel Reducer PipeDo you have an exhaust build that is designed with different pipe sizes? 4 State Trucks offers the high quality reducer that...
    09-080100165
    SKU:
    09-080100165
    Diameter Options:
    6 Inch
    Truck Class:
    Universal
    Length Options:
    8 Inch
    Material Options:
    Aluminized Steel
    Make:
    Universal Items
    Product Type:
    Exhaust
    Ready To Ship:
    Yes
    $45.59
    Qty in Cart: 0
    Price:
    $45.59
    Subtotal:
  • BESTfit Aluminized Exhaust Adapter Reducer 6 ID X 4 OD X 8 Inch

    BESTfit Aluminized Exhaust Adapter Reducer 6 ID X 4 OD X 8 Inch

    BESTFIT TRUCK PARTS

    $88.99
    BESTfit 6 To 4 Inch I.D.-O.D. X 8 Inch OAL Aluminized Steel Reducer PipeAre you building a custom exhaust that requires different pipe sizes? 4 State Trucks offers this high quality reducer that is...
    09-080100164
    SKU:
    09-080100164
    Diameter Options:
    6 Inch
    Truck Class:
    Universal
    Length Options:
    8 Inch
    Material Options:
    Aluminized Steel
    Make:
    Universal Items
    Product Type:
    Exhaust
    $88.99
    Qty in Cart: 0
    Price:
    $88.99
    Subtotal:
  • BESTfit Aluminized Exhaust Adapter Reducer 6 ID X 4 ID X 8 Inch

    BESTfit Aluminized Exhaust Adapter Reducer 6 ID X 4 ID X 8 Inch

    BESTFIT TRUCK PARTS

    $70.99
    BESTfit 6 To 4 Inch I.D.-I.D. X 8 Inch OAL Aluminized Steel Reducer PipeAre you building a custom exhaust that requires different pipe sizes? 4 State Trucks offers this high quality reducer to...
    09-080100163
    SKU:
    09-080100163
    Truck Class:
    Universal
    Diameter Options:
    6 Inch
    Length Options:
    8 Inch
    Material Options:
    Aluminized Steel
    Make:
    Universal Items
    Product Type:
    Exhaust
    Ready To Ship:
    Yes
    $70.99
    Qty in Cart: 0
    Price:
    $70.99
    Subtotal:
  • BESTfit Aluminized Exhaust Adapter Reducer 5 OD X 4 OD X 8 Inch

    BESTfit Aluminized Exhaust Adapter Reducer 5 OD X 4 OD X 8 Inch

    BESTFIT TRUCK PARTS

    $45.60
    BESTfit 5 To 4 Inch O.D.-O.D. X 8 Inch OAL Aluminized Steel Reducer PipeAre you building a custom exhaust that requires different pipe sizes? 4 State Trucks offers this high quality reducer to...
    09-080100162
    SKU:
    09-080100162
    Truck Class:
    Universal
    Diameter Options:
    5 Inch
    Length Options:
    8 Inch
    Material Options:
    Aluminized Steel
    Make:
    Universal Items
    Product Type:
    Exhaust
    $45.60
    Qty in Cart: 0
    Price:
    $45.60
    Subtotal:
  • BESTfit Aluminized Exhaust Reducer 5 OD X 4 ID X 8 Inch

    BESTfit Aluminized Exhaust Reducer 5 OD X 4 ID X 8 Inch

    BESTFIT TRUCK PARTS

    $29.99
    5 To 4 Inch OD-ID X 8 Inch OAL Aluminized Steel Reducer PipeAre you building a custom exhaust that requires different pipe sizes? 4 State Trucks offers this high quality reducer that is made to last...
    09-080100161
    SKU:
    09-080100161
    Diameter Options:
    5 Inch
    Truck Class:
    Universal
    Length Options:
    8 Inch
    Material Options:
    Aluminized Steel
    Make:
    Universal Items
    Product Type:
    Exhaust
    Ready To Ship:
    Yes
    $29.99
    Qty in Cart: 0
    Price:
    $29.99
    Subtotal:
  • BESTfit Aluminized Exhaust Adapter Reducer 5 ID X 4 OD X 8 Inch

    BESTfit Aluminized Exhaust Adapter Reducer 5 ID X 4 OD X 8 Inch

    BESTFIT TRUCK PARTS

    $42.43
    BESTfit 5 To 4 Inch I.D.-O.D. X 8 Inch OAL Aluminized Steel Reducer PipeDo you want to ensure your pipe connections fit perfectly and look great? 4 State Trucks high quality reducer that will...
    09-080100160
    SKU:
    09-080100160
    Diameter Options:
    5 Inch
    Truck Class:
    Universal
    Length Options:
    8 Inch
    Material Options:
    Aluminized Steel
    Make:
    Universal Items
    Product Type:
    Exhaust
    Ready To Ship:
    Yes
    $42.43
    Qty in Cart: 0
    Price:
    $42.43
    Subtotal:
  • FREE SHIPPING OVER $249
    BESTfit Aluminized Exhaust Reducer 5 ID X 4 ID X 8 Inch

    BESTfit Aluminized Exhaust Reducer 5 ID X 4 ID X 8 Inch

    BESTFIT TRUCK PARTS

    $34.84
    BESTfit 5 To 4 Inch ID-ID X 8 Inch OAL Aluminized Steel Reducer PipeAre you looking for a reducer to ensure your exhaust pipes fit perfectly? 4 State Trucks offers this high quality reducer that will...
    09-080100159
    SKU:
    09-080100159
    Truck Class:
    Universal
    Diameter Options:
    5 Inch
    Length Options:
    8 Inch
    Material Options:
    Aluminized Steel
    Make:
    Universal Items
    Product Type:
    Exhaust
    Ready To Ship:
    Yes
    $34.84
    Qty in Cart: 0
    Price:
    $34.84
    Subtotal:
  • BESTfit Aluminized Exhaust Adapter Reducer 4 OD X 3 OD X 8 Inch

    BESTfit Aluminized Exhaust Adapter Reducer 4 OD X 3 OD X 8 Inch

    BESTFIT TRUCK PARTS

    $21.74
    BESTfit 4 To 3 Inch O.D.-O.D. X 8 Inch OAL Aluminized Steel Reducer Pipe4 State Trucks offers this high quality reducer that will securely connect two different sized pipes on an exhaust with ease...
    09-080100158
    SKU:
    09-080100158
    Truck Class:
    Universal
    Material Options:
    Aluminized Steel
    Make:
    Universal Items
    Diameter Options:
    4 Inch
    Length Options:
    8 Inch
    Product Type:
    Exhaust
    $21.74
    Qty in Cart: 0
    Price:
    $21.74
    Subtotal:
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Why Upgrade Your FLT Cabover Exhaust System?

Swapping in new exhaust components helps your cabover breathe better, run cooler, and burn cleaner. You’ll see real benefits on the road: - Improved airflow and horsepower  - Reduced emissions and exhaust noise - Longer-lasting engine performance - Custom style with chrome stacks and tips It’s more than just a repair—it’s a smart upgrade for any serious trucker who wants to keep their FLT running strong. What’s in the Lineup? - Chrome Stacks & Elbows: Give your rig that signature cabover style  - Mufflers & DPF Systems: Reduce engine noise and filter harmful emissions - Clamps, Brackets & Mounting Hardware: Keep everything secured tight - Replacement Piping: Direct exhaust gases efficiently - Complete Exhaust Kits: Everything you need in one go
These parts are built tough for heavy-duty, commercial use and made to fit the unique frame and layout of Freightliner FLT Cabover trucks. Add some power to your exhaust upgrade with Freightilner FLT engine performance parts – like exhaust manifolds and turbochargers – for a comprehensive optimization. While you’re under the hood swapping out exhaust components, consider throwing in some FLT Cabover truck heating parts.

Frequently Asked Questions About Freightliner FLT Cabover Exhaust Parts

What years and models of Freightliner FLT cabovers are these exhaust parts compatible with?

Our exhaust parts are designed to fit Freightliner FLT cabover models from 1980 through 1991, including the FLT86, FLT75, and FLT64 series. Each product listing specifies exact model compatibility. For trucks with aftermarket modifications or custom exhaust routing, we recommend measuring your existing system before ordering to ensure proper fitment.

Are these exhaust stacks chrome-plated steel or stainless steel, and what's the difference in durability?

We offer both chrome-plated steel and 304 stainless steel options. Chrome-plated stacks provide a mirror finish at a lower cost but may require more maintenance and can develop rust spots over time, especially in salt-heavy regions. Stainless steel stacks cost more initially but resist corrosion better and maintain their appearance longer with minimal upkeep. Both options are 16-gauge thickness for durability.

Do I need special tools or professional installation for these exhaust components?

Most exhaust stack replacements can be completed with standard hand tools including wrenches, sockets, and clamps. However, some installations may require cutting or welding, particularly when replacing elbows or modifying exhaust routing. We include detailed instructions with each part. For complete system overhauls or if you're uncomfortable with exhaust work, professional installation typically takes 2-4 hours.

What diameter exhaust stacks fit the FLT cabover, and can I upgrade from my current size?

Standard FLT cabovers came with 5-inch diameter exhaust systems, though some models used 4-inch. You can upgrade to a larger diameter, but this requires matching elbows, reducers, and potentially new mounting brackets. MoOEMg from 4-inch to 5-inch typically improves exhaust flow and sound but requires verifying clearance between the stack and cab.

How do curved versus straight stacks affect performance and appearance on FLT cabovers?

Curved stacks direct exhaust away from the cab, reducing soot buildup on your truck and trailer while providing the classic cabover look. Straight stacks offer easier installation and slightly better exhaust flow but may deposit more soot on your equipment. Neither significantly impacts engine performance. The choice is primarily aesthetic and based on your maintenance preferences.

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