Peterbilt 357/378 Exhaust Kits

Peterbilt 357/378 Exhaust Kits

Peterbilt 357/378 Exhaust Kits

Make upgrading your exhaust a breeze with Peterbilt 378 aftermarket exhaust kits. Shop for custom, chrome, and aftermarket exhaust kits, designed to fit your Peterbilt. We have exhaust kits and parts that will fit your big rig and budget.
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  • On Sale
    BESTfit 7-5 X 102 Inch Chrome Exhaust Kit W/  Flat Top Top Stack  Long Drop Elbows No Tee Peterbilt (1987-2003) 52 Inch Quiet Spools Non-Unibilt BESTfit 7-5 X 102 Inch Chrome Exhaust Kit W/  Flat Top Top Stack  Long Drop Elbows No Tee Peterbilt (1987-2003) 52 Inch Quiet Spools Non-Unibilt
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    BESTfit 7-5 X 102 Inch Chrome Exhaust Kit W/ Flat Top Top Stack Long Drop Elbows No Tee Peterbilt (1987-2003) 52 Inch Quiet Spools Non-Unibilt

    BESTFIT TRUCK PARTS

    Now: $2,735.99
    Was: $3,039.99
    Chrome 7 Inch Exhaust Kit With 52 Inch Spool & Long Drop 90 Degree Elbows  - Made Of High Quality Chrome-Plated Steel - Length 102 Inch - 2- 09-08704800- 7 O.D. X 48 Flat Top Chrome Top Stack Lincoln - 2- 09-0837052- Exhaust Quiet...
    Now: $2,735.99
    Was: $3,039.99
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    Now: $2,735.99
    Was: $3,039.99
    Subtotal:
  • On Sale
    BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/  West Coast Turn Top Stack  Long Drop Elbows No Tee Peterbilt (2005-Newer) 55 Inch Standard Spool Unibilt BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/  West Coast Turn Top Stack  Long Drop Elbows No Tee Peterbilt (2005-Newer) 55 Inch Standard Spool Unibilt
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    BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/ West Coast Turn Top Stack Long Drop Elbows No Tee Peterbilt (2005-Newer) 55 Inch Standard Spool Unibilt

    BESTFIT TRUCK PARTS

    Now: $3,164.39
    Was: $3,515.99
    Chrome 8 Inch Exhaust Kit With 55 Inch Spool & Long Drop 90 Degree Elbows  - Made Of High Quality Chrome-Plated Steel - Length 96 Inch - 2- 01-0800800- Wide Angled Clamp 8 Inch Chrome-Plated Stainless Steel - 2- 01-0800003- Exhaust...
    Now: $3,164.39
    Was: $3,515.99
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    Qty in Cart: 0
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    Now: $3,164.39
    Was: $3,515.99
    Subtotal:
  • On Sale
    BESTfit 7-5 X 102 Inch Chrome Exhaust Kit W/  Flat Top Top Stack  Long 90S & Chrome Tapered Y-Pipe 5 Inch Taper Lock Chrome Tee Peterbilt (1987-2003) 52 Inch Quiet Spools Non-Unibilt BESTfit 7-5 X 102 Inch Chrome Exhaust Kit W/  Flat Top Top Stack  Long 90S & Chrome Tapered Y-Pipe 5 Inch Taper Lock Chrome Tee Peterbilt (1987-2003) 52 Inch Quiet Spools Non-Unibilt
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    BESTfit 7-5 X 102 Inch Chrome Exhaust Kit W/ Flat Top Top Stack Long 90S & Chrome Tapered Y-Pipe 5 Inch Taper Lock Chrome Tee Peterbilt (1987-2003) 52 Inch Quiet Spools Non-Unibilt

    BESTFIT TRUCK PARTS

    Now: $3,160.79
    Was: $3,511.99
    Chrome 7 Inch Exhaust Kit With 55 Inch Spool, Long Drop Elbows & 5 Inch T Pipe  - Made Of High Quality Chrome-Plated Steel - Length 102 Inch - 2 - 01-08017500- Chrome Long Leg 7 Inch Elbow With Tapered Top Reduced To 5 Inch O.D...
    Now: $3,160.79
    Was: $3,511.99
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    Qty in Cart: 0
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    Now: $3,160.79
    Was: $3,511.99
    Subtotal:
  • On Sale
    BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/  Bull Hauler Turn Top Stack  Long Drop Elbows No Tee Peterbilt (2005-Newer) 55 Inch Standard Spool Non-Unibilt BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/  Bull Hauler Turn Top Stack  Long Drop Elbows No Tee Peterbilt (2005-Newer) 55 Inch Standard Spool Non-Unibilt
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    BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/ Bull Hauler Turn Top Stack Long Drop Elbows No Tee Peterbilt (2005-Newer) 55 Inch Standard Spool Non-Unibilt

    BESTFIT TRUCK PARTS

    Now: $3,066.29
    Was: $3,406.99
    Chrome 8 Inch Exhaust Kit With 55 Inch Spool & Long Drop 90 Degree Elbows  - Made Of High Quality Chrome-Plated Steel - Length 96 Inch - 2- 09-08804404- 8 O.D. X 44 Bull Hauler Chrome Top Stack  - 2- 09-0828055- Exhaust Spool 8 Inch O...
    Now: $3,066.29
    Was: $3,406.99
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    Qty in Cart: 0
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    Now: $3,066.29
    Was: $3,406.99
    Subtotal:
  • On Sale
    BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/  West Coast Turn Top Stack  Long Drop Elbows No Tee Peterbilt (1987-2003) 52 Inch Standard Spool Unibilt BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/  West Coast Turn Top Stack  Long Drop Elbows No Tee Peterbilt (1987-2003) 52 Inch Standard Spool Unibilt
    Add to Cart

    BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/ West Coast Turn Top Stack Long Drop Elbows No Tee Peterbilt (1987-2003) 52 Inch Standard Spool Unibilt

    BESTFIT TRUCK PARTS

    Now: $3,164.39
    Was: $3,515.99
    Chrome 8 Inch Exhaust Kit With 52 Inch Spool & Long Drop 90 Degree Elbows  - Exhaust Kit - Made Of Chrome-Plated Steel - Length 96 Inch - (2) Wide Angled Clamp 8 Inch Chrome-Plated Stainless Steel - (2) Exhaust Mount Grommets...
    Now: $3,164.39
    Was: $3,515.99
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $3,164.39
    Was: $3,515.99
    Subtotal:
  • On Sale
    BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/  Bull Hauler Turn Top Stack  Long Drop Elbows No Tee Peterbilt (2005-Newer) 55 Inch Standard Spool Unibilt BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/  Bull Hauler Turn Top Stack  Long Drop Elbows No Tee Peterbilt (2005-Newer) 55 Inch Standard Spool Unibilt
    Add to Cart

    BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/ Bull Hauler Turn Top Stack Long Drop Elbows No Tee Peterbilt (2005-Newer) 55 Inch Standard Spool Unibilt

    BESTFIT TRUCK PARTS

    Now: $3,301.19
    Was: $3,667.99
    Chrome 8 Inch Exhaust Kit With 55 Inch Spool & Long Drop 90 Degree Elbows  - Made Of High Quality Chrome-Plated Steel - Length 96 Inch - 2- 01-0800800- Wide Angled Clamp 8 Inch Chrome-Plated Stainless Steel - 2- 01-0800003- Exhaust...
    Now: $3,301.19
    Was: $3,667.99
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    Qty in Cart: 0
    Quantity:
    Price:
    Now: $3,301.19
    Was: $3,667.99
    Subtotal:
  • On Sale
    BESTfit 7-5 X 102 Inch Chrome Exhaust Kit W/  Flat Top Top Stack  OE Style Elbows  Peterbilt 378, 379 (1987-2003) 52 Inch Quiet Spools Non-Unibilt BESTfit 7-5 X 102 Inch Chrome Exhaust Kit W/  Flat Top Top Stack  OE Style Elbows  Peterbilt 378, 379 (1987-2003) 52 Inch Quiet Spools Non-Unibilt
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    BESTfit 7-5 X 102 Inch Chrome Exhaust Kit W/ Flat Top Top Stack OE Style Elbows Peterbilt 378, 379 (1987-2003) 52 Inch Quiet Spools Non-Unibilt

    BESTFIT TRUCK PARTS

    Now: $2,578.49
    Was: $2,864.99
    Chrome 7 Inch Exhaust Kit With 52 Inch Spool & 58 Degree Elbow  - Made Of High Quality Chrome-Plated Steel - Length 102 Inch - 2- 01-081753056- 7-5 58-Dg Chrome Elbow Peterbilt With Tapered Top For O.D. Stacks 7 Inch Elbow Reduces To 5...
    Now: $2,578.49
    Was: $2,864.99
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    Qty in Cart: 0
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    Price:
    Now: $2,578.49
    Was: $2,864.99
    Subtotal:
  • On Sale
    BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/  Miter Cut Top Stack  Long Drop Elbows No Tee Peterbilt (2005-Newer) 55 Inch Standard Spool Unibilt BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/  Miter Cut Top Stack  Long Drop Elbows No Tee Peterbilt (2005-Newer) 55 Inch Standard Spool Unibilt
    Add to Cart

    BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/ Miter Cut Top Stack Long Drop Elbows No Tee Peterbilt (2005-Newer) 55 Inch Standard Spool Unibilt

    BESTFIT TRUCK PARTS

    Now: $3,095.99
    Was: $3,439.99
    Chrome 8 Inch Exhaust Kit With 55 Inch Spool & Long Drop 90 Degree Elbows  - Exhaust Kit  - Chrome-Plated Steel - Length 96 Inch - (2) Wide Angled Clamp 8 Inch Chrome-Plated Stainless Steel - (2) Exhaust Mount Grommets Pack Of 4...
    Now: $3,095.99
    Was: $3,439.99
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $3,095.99
    Was: $3,439.99
    Subtotal:
  • On Sale
    BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/  West Coast Turn Top Stack  Long Drop Elbows No Tee Peterbilt (2005-Newer) 55 Inch Standard Spool Non-Unibilt BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/  West Coast Turn Top Stack  Long Drop Elbows No Tee Peterbilt (2005-Newer) 55 Inch Standard Spool Non-Unibilt
    Add to Cart

    BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/ West Coast Turn Top Stack Long Drop Elbows No Tee Peterbilt (2005-Newer) 55 Inch Standard Spool Non-Unibilt

    BESTFIT TRUCK PARTS

    Now: $2,931.29
    Was: $3,256.99
    Chrome 8 Inch Exhaust Kit With 55 Inch Spool & Long Drop 90 Degree Elbows  - Made Of High Quality Chrome-Plated Steel - Length 96 Inch - 2- 09-08804408- 8 O.D. X 44 West Coast Chrome Top Stack  - 2- 09-0828055- Exhaust Spool 8 Inch O...
    Now: $2,931.29
    Was: $3,256.99
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $2,931.29
    Was: $3,256.99
    Subtotal:
  • On Sale
    BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/  West Coast Turn Top Stack  OE Style Elbows  Peterbilt (1987-2003) 52 Inch Standard Spool Unibilt BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/  West Coast Turn Top Stack  OE Style Elbows  Peterbilt (1987-2003) 52 Inch Standard Spool Unibilt
    Add to Cart

    BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/ West Coast Turn Top Stack OE Style Elbows Peterbilt (1987-2003) 52 Inch Standard Spool Unibilt

    BESTFIT TRUCK PARTS

    Now: $2,855.69
    Was: $3,172.99
    BESTfit Chrome 8 Inch Exhaust Kit With 52 Inch Spool Fits Peterbilt  - Made Of High Quality Chrome-Plated Steel - Sleeper Type: Unibilt - Top Cut: West Coast Turnout - Length: 96 Inches - Peterbilt Style Elbows - 52 Inch...
    Now: $2,855.69
    Was: $3,172.99
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $2,855.69
    Was: $3,172.99
    Subtotal:
  • On Sale
    BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/  Bull Hauler Turn Top Stack  OE Style Elbows  Peterbilt (1987-2003) 52 Inch Standard Spool Unibilt BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/  Bull Hauler Turn Top Stack  OE Style Elbows  Peterbilt (1987-2003) 52 Inch Standard Spool Unibilt
    Add to Cart

    BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/ Bull Hauler Turn Top Stack OE Style Elbows Peterbilt (1987-2003) 52 Inch Standard Spool Unibilt

    BESTFIT TRUCK PARTS

    Now: $2,991.59
    Was: $3,323.99
    BESTfit Chrome 8 Inch Exhaust Kit With 52 Inch Spool Fits Peterbilt  - Made Of High Quality Chrome-Plated Steel - Sleeper Type: Unibilt - Top Cut: Bull Hauler Turnouts - Length: 96 Inches - Peterbilt Style Elbows - 52 Inch...
    Now: $2,991.59
    Was: $3,323.99
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $2,991.59
    Was: $3,323.99
    Subtotal:
  • On Sale
    BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/  Miter Cut Top Stack  Long Drop Elbows No Tee Peterbilt (2005-Newer) 55 Inch Standard Spool Non-Unibilt BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/  Miter Cut Top Stack  Long Drop Elbows No Tee Peterbilt (2005-Newer) 55 Inch Standard Spool Non-Unibilt
    Add to Cart

    BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/ Miter Cut Top Stack Long Drop Elbows No Tee Peterbilt (2005-Newer) 55 Inch Standard Spool Non-Unibilt

    BESTFIT TRUCK PARTS

    Now: $2,863.79
    Was: $3,181.99
    Chrome 8 Inch Exhaust Kit With 55 Inch Spool & Long Drop 90 Degree Elbows  - Exhaust Kit  - Kit Includes:  - (2) 8 O.D. X 44 Miter Chrome Top Stack   - (2) Exhaust Spool 8 Inch O.D. X 55 Inch Chrome Tapered Top  - (2) Chrome Long...
    Now: $2,863.79
    Was: $3,181.99
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $2,863.79
    Was: $3,181.99
    Subtotal:
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