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 8-5 X 96 Inch Chrome Exhaust Kit W/  West Coast Turn Top Stack  OE Style Elbows  Peterbilt (2005-Newer) 55 Inch Quiet Spools Unibilt BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/  West Coast Turn Top Stack  OE Style Elbows  Peterbilt (2005-Newer) 55 Inch Quiet Spools Unibilt
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    BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/ West Coast Turn Top Stack OE Style Elbows Peterbilt (2005-Newer) 55 Inch Quiet Spools Unibilt

    BESTFIT TRUCK PARTS

    Now: $3,104.99
    Was: $3,449.99
    BESTfit Chrome 8 Inch Exhaust Kit With 55 Inch Spool Fits Peterbilt 378 & 379  - Made Of High Quality Chrome-Plated Steel - Sleeper Type: Unibilt - Top Cut: West Coast Turnouts - Length: 96 Inches - Peterbilt Style Elbows -...
    Now: $3,104.99
    Was: $3,449.99
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    Now: $3,104.99
    Was: $3,449.99
    Subtotal:
  • On Sale
    BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/  Flat Top Top Stack  OE Style Elbows  Peterbilt (1987-2003) 52 Inch Quiet Spools Non-Unibilt BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/  Flat Top Top Stack  OE Style Elbows  Peterbilt (1987-2003) 52 Inch Quiet Spools Non-Unibilt
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    BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/ Flat Top Top Stack OE Style Elbows Peterbilt (1987-2003) 52 Inch Quiet Spools Non-Unibilt

    BESTFIT TRUCK PARTS

    Now: $2,884.49
    Was: $3,204.99
    BESTfit Chrome 8 Inch Exhaust Kit With 52 Inch Spool Fits Peterbilt 378 & 379  - Made Of High Quality Chrome-Plated Steel - Sleeper Type: Standard - Top Cut: Flat Top - Length: 96 Inches - Peterbilt Style Elbows - 52 Inch...
    Now: $2,884.49
    Was: $3,204.99
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    Qty in Cart: 0
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    Now: $2,884.49
    Was: $3,204.99
    Subtotal:
  • On Sale
    BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/  Bull Hauler Turn Top Stack  Long Drop Elbows No Tee Peterbilt (1987-2003) 52 Inch Quiet Spools Unibilt BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/  Bull Hauler Turn Top Stack  Long Drop Elbows No Tee Peterbilt (1987-2003) 52 Inch Quiet Spools 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 (1987-2003) 52 Inch Quiet Spools Unibilt

    BESTFIT TRUCK PARTS

    Now: $3,471.29
    Was: $3,856.99
    Chrome 8 Inch Exhaust Kit With 52 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: $3,471.29
    Was: $3,856.99
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    Qty in Cart: 0
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    Now: $3,471.29
    Was: $3,856.99
    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 Quiet Spools Non-Unibilt BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/  West Coast Turn Top Stack  OE Style Elbows  Peterbilt (1987-2003) 52 Inch Quiet Spools Non-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 Quiet Spools Non-Unibilt

    BESTFIT TRUCK PARTS

    Now: $2,954.69
    Was: $3,282.99
    BESTfit Chrome 8 Inch Exhaust Kit With 52 Inch Spool Fits Peterbilt 378 & 379  - Made Of High Quality Chrome-Plated Steel - Sleeper Type: Standard - Top Cut: West Coast Turnouts - Length: 96 Inches - Long Drop Elbows - 55...
    Now: $2,954.69
    Was: $3,282.99
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    Qty in Cart: 0
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    Price:
    Now: $2,954.69
    Was: $3,282.99
    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 Quiet Spools Non-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 Quiet Spools 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 (1987-2003) 52 Inch Quiet Spools Non-Unibilt

    BESTFIT TRUCK PARTS

    Now: $3,167.09
    Was: $3,518.99
    Chrome 8 Inch Exhaust Kit With 52 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- 09-0838052- Exhaust Quiet Spool 8...
    Now: $3,167.09
    Was: $3,518.99
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    Qty in Cart: 0
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    Price:
    Now: $3,167.09
    Was: $3,518.99
    Subtotal:
  • On Sale
    BESTfit 8-5 X 120 Inch Chrome Exhaust Kit W/  West Coast Turn Top Stack  OE Style Elbows  Peterbilt (1987-2003) 52 Inch Quiet Spools Unibilt BESTfit 8-5 X 120 Inch Chrome Exhaust Kit W/  West Coast Turn Top Stack  OE Style Elbows  Peterbilt (1987-2003) 52 Inch Quiet Spools Unibilt
    Add to Cart

    BESTfit 8-5 X 120 Inch Chrome Exhaust Kit W/ West Coast Turn Top Stack OE Style Elbows Peterbilt (1987-2003) 52 Inch Quiet Spools Unibilt

    BESTFIT TRUCK PARTS

    Now: $3,336.29
    Was: $3,706.99
    Chrome 8 Inch Exhaust Kit With 52 Inch Spool & 58 Degree Elbow  - Made Of High Quality Chrome-Plated Steel - Length 120 Inch - 2- 01-0800800- Wide Angled Clamp 8 Inch Chrome-Plated Stainless Steel - 2- 01-0800003- Exhaust Mount...
    Now: $3,336.29
    Was: $3,706.99
    Add to Cart
    Qty in Cart: 0
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    Price:
    Now: $3,336.29
    Was: $3,706.99
    Subtotal:
  • On Sale
    BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/  Bull Hauler Turn Top Stack  Long Drop Elbows No Tee Peterbilt (1987-2003) 52 Inch Quiet Spools Non-Unibilt BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/  Bull Hauler Turn Top Stack  Long Drop Elbows No Tee Peterbilt (1987-2003) 52 Inch Quiet Spools Non-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 (1987-2003) 52 Inch Quiet Spools Non-Unibilt

    BESTFIT TRUCK PARTS

    Now: $3,302.99
    Was: $3,669.99
    Chrome 8 Inch Exhaust Kit With 52 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- 09-0838052- Exhaust Quiet Spool 8...
    Now: $3,302.99
    Was: $3,669.99
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $3,302.99
    Was: $3,669.99
    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 Quiet Spools 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 Quiet Spools Non-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 Quiet Spools Non-Unibilt

    BESTFIT TRUCK PARTS

    Now: $3,487.49
    Was: $3,874.99
    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- 09-0838055- Exhaust Quiet Spool 8...
    Now: $3,487.49
    Was: $3,874.99
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $3,487.49
    Was: $3,874.99
    Subtotal:
  • On Sale
    BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/  West Coast Turn Top Stack  OE Style Elbows  Peterbilt (2005-Newer) 55 Inch Quiet Spools Non-Unibilt BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/  West Coast Turn Top Stack  OE Style Elbows  Peterbilt (2005-Newer) 55 Inch Quiet Spools Non-Unibilt
    Add to Cart

    BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/ West Coast Turn Top Stack OE Style Elbows Peterbilt (2005-Newer) 55 Inch Quiet Spools Non-Unibilt

    BESTFIT TRUCK PARTS

    Now: $2,906.99
    Was: $3,229.99
    BESTfit Chrome 8 Inch Exhaust Kit With 55 Inch Spool Fits Peterbilt 378 & 379  - Made Of High Quality Chrome-Plated Steel - Sleeper Type: Standard - Top Cut: West Coast Turnouts - Length: 96 Inches - Long Drop Elbows - 55...
    Now: $2,906.99
    Was: $3,229.99
    Add to Cart
    Qty in Cart: 0
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    Price:
    Now: $2,906.99
    Was: $3,229.99
    Subtotal:
  • On Sale
    BESTfit 8-5 X 120 Inch Chrome Exhaust Kit W/  West Coast Turn Top Stack  Long 90S & Chrome Tapered Y-Pipe 8 Inch Taper Lock Chrome Tee Peterbilt (1987-2003) 52 Inch Quiet Spools Non-Unibilt BESTfit 8-5 X 120 Inch Chrome Exhaust Kit W/  West Coast Turn Top Stack  Long 90S & Chrome Tapered Y-Pipe 8 Inch Taper Lock Chrome Tee Peterbilt (1987-2003) 52 Inch Quiet Spools Non-Unibilt
    Add to Cart

    BESTfit 8-5 X 120 Inch Chrome Exhaust Kit W/ West Coast Turn Top Stack Long 90S & Chrome Tapered Y-Pipe 8 Inch Taper Lock Chrome Tee Peterbilt (1987-2003) 52 Inch Quiet Spools Non-Unibilt

    BESTFIT TRUCK PARTS

    Now: $4,415.39
    Was: $4,905.99
    Chrome 8 Inch Exhaust Kit With 52 Inch Spool, Long Drop Elbows & 5 Inch T Pipe  - Made Of High Quality Chrome-Plated Steel - Length 120 Inch - 2 - 01-08018000- Chrome Long Leg 8 Inch Elbow With Tapered Top 8 Inch O.D. Bottom - 1 -...
    Now: $4,415.39
    Was: $4,905.99
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    Qty in Cart: 0
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    Now: $4,415.39
    Was: $4,905.99
    Subtotal:
  • On Sale
    BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/  Bull Hauler Turn Top Stack  OE Style Elbows  Peterbilt (2005-Newer) 55 Inch Quiet Spools Non-Unibilt BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/  Bull Hauler Turn Top Stack  OE Style Elbows  Peterbilt (2005-Newer) 55 Inch Quiet Spools Non-Unibilt
    Add to Cart

    BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/ Bull Hauler Turn Top Stack OE Style Elbows Peterbilt (2005-Newer) 55 Inch Quiet Spools Non-Unibilt

    BESTFIT TRUCK PARTS

    Now: $3,043.79
    Was: $3,381.99
    BESTfit Chrome 8 Inch Exhaust Kit With 55 Inch Spool Fits Peterbilt 378 & 379  - Made Of High Quality Chrome-Plated Steel - Sleeper Type: Standard - Top Cut: Bull Hauler Turnout - Length: 96 Inches - Peterbilt Style Elbows -...
    Now: $3,043.79
    Was: $3,381.99
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $3,043.79
    Was: $3,381.99
    Subtotal:
  • On Sale
    BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/  Bull Hauler Turn Top Stack  Long 90S & Chrome Tapered Y-Pipe 5 Inch Taper Lock Chrome Tee Peterbilt (1987-2003) 52 Inch Quiet Spools Non-Unibilt BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/  Bull Hauler Turn Top Stack  Long 90S & Chrome Tapered Y-Pipe 5 Inch Taper Lock Chrome Tee Peterbilt (1987-2003) 52 Inch Quiet Spools Non-Unibilt
    Add to Cart

    BESTfit 8-5 X 96 Inch Chrome Exhaust Kit W/ Bull Hauler Turn 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: $3,711.59
    Was: $4,123.99
    BESTfit Chrome 8 Inch Exhaust Kit With 52 Inch Spool Fits Peterbilt 378 & 379  - Made Of High Quality Chrome-Plated Steel - Sleeper Type: Standard - Top Cut: Bull Hauler Turnout - Length: 96 Inches - Long Drop Elbows - 52...
    Now: $3,711.59
    Was: $4,123.99
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $3,711.59
    Was: $4,123.99
    Subtotal:
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