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 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 7-5 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
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    BESTfit 7-5 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: $2,725.19
    Was: $3,027.99
    Chrome 7 Inch Exhaust Kit With 52 Inch Spool & Long Drop 90 Degree Elbows  - Exhaust Kit  - Made Of Chrome-Plated Steel - Length 96 Inch - (4) Wide Angled Clamp 7 Inch Peterbilt Chrome-Plated Stainless Steel - (2) Peterbilt...
    Now: $2,725.19
    Was: $3,027.99
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    Qty in Cart: 0
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    Now: $2,725.19
    Was: $3,027.99
    Subtotal:
  • On Sale
    BESTfit 8-5 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 Standard Spool Non-Unibilt BESTfit 8-5 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 Standard Spool Non-Unibilt
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    BESTfit 8-5 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 Standard Spool Non-Unibilt

    BESTFIT TRUCK PARTS

    Now: $3,350.69
    Was: $3,722.99
    Chrome 8 Inch Exhaust Kit With 55 Inch Spool, Long Drop Elbows & 5 Inch T Pipe  - Exhaust Kit  - Chrome-Plated Steel - Length 102 Inch - (2) Chrome Long Leg 8 Inch Elbow With Tapered Top Reduced To 5 Inch O.D. Bottom - (1) Y Pipe...
    Now: $3,350.69
    Was: $3,722.99
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    Now: $3,350.69
    Was: $3,722.99
    Subtotal:
  • On Sale
    BESTfit 7-5 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 7-5 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 7-5 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: $2,725.19
    Was: $3,027.99
    Chrome 7 Inch Exhaust Kit With 55 Inch Spool & Long Drop 90 Degree Elbows  - Made Of High Quality Chrome-Plated Steel - Length 96 Inch - 4 - 01-0800700- Wide Angled Clamp 7 Inch Peterbilt Chrome-Plated Stainless Steel - 2 -...
    Now: $2,725.19
    Was: $3,027.99
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $2,725.19
    Was: $3,027.99
    Subtotal:
  • On Sale
    BESTfit 7-5 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 7-5 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
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    BESTfit 7-5 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: $2,500.19
    Was: $2,777.99
    Chrome 7 Inch Exhaust Kit With 55 Inch Spool & Long Drop 90 Degree Elbows  - Made Of High Quality Chrome-Plated Steel - Length 96 Inch - 2- 09-08704408- 7 O.D. X 44 West Coast Turn Out Chrome Top Stack Lincoln - 2- 09-0827055- Exhaust...
    Now: $2,500.19
    Was: $2,777.99
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    Qty in Cart: 0
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    Now: $2,500.19
    Was: $2,777.99
    Subtotal:
  • On Sale
    BESTfit 7 X 96 Inch Chrome Exhaust Kit W/  West Coast Turn Top Stack   Long 90S & 7 Inch Y-Pipe 7 Inch Taper Lock Chrome Tee Peterbilt (1987-2003) 52 Inch Standard Spool Non-Unibilt BESTfit 7 X 96 Inch Chrome Exhaust Kit W/  West Coast Turn Top Stack   Long 90S & 7 Inch Y-Pipe 7 Inch Taper Lock Chrome Tee Peterbilt (1987-2003) 52 Inch Standard Spool Non-Unibilt
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    BESTfit 7 X 96 Inch Chrome Exhaust Kit W/ West Coast Turn Top Stack Long 90S & 7 Inch Y-Pipe 7 Inch Taper Lock Chrome Tee Peterbilt (1987-2003) 52 Inch Standard Spool Non-Unibilt

    BESTFIT TRUCK PARTS

    Now: $3,329.09
    Was: $3,698.99
    BESTfit Chrome 7 Inch Exhaust Kit With 52 Inch Spool Fits Peterbilt  - Made Of High Quality Chrome-Plated Steel - Sleeper Type: Standard - Top Cut: West Coast Turnout - Length: 96 Inches - Long Drop Elbows - 52 Inch...
    Now: $3,329.09
    Was: $3,698.99
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    Qty in Cart: 0
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    Now: $3,329.09
    Was: $3,698.99
    Subtotal:
  • On Sale
    BESTfit 7-5 X 96 Inch Chrome Exhaust Kit W/  West Coast Turn Top Stack W/ 5 Inch Taper Lock Chrome Tee Long 90S & Chrome Tapered Y-Pipe Peterbilt (1987-2003) 52 Inch Standard Spool Unibilt BESTfit 7-5 X 96 Inch Chrome Exhaust Kit W/  West Coast Turn Top Stack W/ 5 Inch Taper Lock Chrome Tee Long 90S & Chrome Tapered Y-Pipe Peterbilt (1987-2003) 52 Inch Standard Spool Unibilt
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    BESTfit 7-5 X 96 Inch Chrome Exhaust Kit W/ West Coast Turn Top Stack W/ 5 Inch Taper Lock Chrome Tee Long 90S & Chrome Tapered Y-Pipe Peterbilt (1987-2003) 52 Inch Standard Spool Unibilt

    BESTFIT TRUCK PARTS

    Now: $3,068.09
    Was: $3,408.99
    BESTfit Chrome 7 Inch Exhaust Kit With 52 Inch Spool Fits Peterbilt  - Exhaust Kit  - Kit Includes:  - (2) West Coast Turnout Top Stack   - (2) Center Spools   - (2) 7 Inch To 5 Inch Long Drop Elbows   - (2) Cab Brackets...
    Now: $3,068.09
    Was: $3,408.99
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    Qty in Cart: 0
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    Price:
    Now: $3,068.09
    Was: $3,408.99
    Subtotal:
  • On Sale
    BESTfit 7-5 X 96 Inch Chrome Exhaust Kit W/  West Coast Turn Top Stack  OE Style Elbows  Peterbilt 378, 379, 389 Glider (2005-Newer) 55 Inch Standard Spool Non-Unibilt BESTfit 7-5 X 96 Inch Chrome Exhaust Kit W/  West Coast Turn Top Stack  OE Style Elbows  Peterbilt 378, 379, 389 Glider (2005-Newer) 55 Inch Standard Spool Non-Unibilt
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    BESTfit 7-5 X 96 Inch Chrome Exhaust Kit W/ West Coast Turn Top Stack OE Style Elbows Peterbilt 378, 379, 389 Glider (2005-Newer) 55 Inch Standard Spool Non-Unibilt

    BESTFIT TRUCK PARTS

    Now: $2,262.59
    Was: $2,513.99
    BESTfit Chrome 7 Inch Exhaust Kit With 55 Inch Spool Fits Peterbilt  - Made Of High Quality Chrome Steel - Sleeper Type: Standard - Top Cut: West Coast Turnout - Length: 96 Inches - Peterbilt Style Elbows - 55 Inch...
    Now: $2,262.59
    Was: $2,513.99
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    Qty in Cart: 0
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    Now: $2,262.59
    Was: $2,513.99
    Subtotal:
  • On Sale
    BESTfit 7 X 96 Inch Chrome Exhaust Kit W/  West Coast Turn Top Stack   Long 90S & 7 Inch Y-Pipe 7 Inch Taper Lock Chrome Tee Peterbilt (2005-Newer) 55 Inch Standard Spool Non-Unibilt BESTfit 7 X 96 Inch Chrome Exhaust Kit W/  West Coast Turn Top Stack   Long 90S & 7 Inch Y-Pipe 7 Inch Taper Lock Chrome Tee Peterbilt (2005-Newer) 55 Inch Standard Spool Non-Unibilt
    Add to Cart

    BESTfit 7 X 96 Inch Chrome Exhaust Kit W/ West Coast Turn Top Stack Long 90S & 7 Inch Y-Pipe 7 Inch Taper Lock Chrome Tee Peterbilt (2005-Newer) 55 Inch Standard Spool Non-Unibilt

    BESTFIT TRUCK PARTS

    Now: $3,329.09
    Was: $3,698.99
    BESTfit Chrome 7 Inch Exhaust Kit With 55 Inch Spool Fits Peterbilt  - Made Of High Quality Chrome-Plated Steel - Sleeper Type: Standard - Top Cut: West Coast Turnout - Length: 96 Inches - Long Drop Elbows - 55 Inch...
    Now: $3,329.09
    Was: $3,698.99
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $3,329.09
    Was: $3,698.99
    Subtotal:
  • On Sale
    BESTfit 7-5 X 96 Inch Chrome Exhaust Kit W/  Bull Hauler Turn Top Stack  Long Drop Elbows No Tee Peterbilt (1987-2003) 52 Inch Standard Spool Unibilt BESTfit 7-5 X 96 Inch Chrome Exhaust Kit W/  Bull Hauler Turn Top Stack  Long Drop Elbows No Tee Peterbilt (1987-2003) 52 Inch Standard Spool Unibilt
    Add to Cart

    BESTfit 7-5 X 96 Inch Chrome Exhaust Kit W/ Bull Hauler Turn Top Stack Long Drop Elbows No Tee Peterbilt (1987-2003) 52 Inch Standard Spool Unibilt

    BESTFIT TRUCK PARTS

    Now: $2,862.89
    Was: $3,180.99
    Chrome 7 Inch Exhaust Kit With 52 Inch Spool & Long Drop 90 Degree Elbows  - Made Of High Quality Chrome-Plated Steel - Length 96 Inch - 4 - 01-0800700- Wide Angled Clamp 7 Inch Peterbilt Chrome-Plated Stainless Steel - 2 -...
    Now: $2,862.89
    Was: $3,180.99
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $2,862.89
    Was: $3,180.99
    Subtotal:
  • On Sale
    BESTfit 7-5 X 96 Inch Chrome Exhaust Kit W/  West Coast Turn Top Stack  Long Drop Elbows No Tee Peterbilt (1987-2003) 52 Inch Standard Spool Non-Unibilt BESTfit 7-5 X 96 Inch Chrome Exhaust Kit W/  West Coast Turn Top Stack  Long Drop Elbows No Tee Peterbilt (1987-2003) 52 Inch Standard Spool Non-Unibilt
    Add to Cart

    BESTfit 7-5 X 96 Inch Chrome Exhaust Kit W/ West Coast Turn Top Stack Long Drop Elbows No Tee Peterbilt (1987-2003) 52 Inch Standard Spool Non-Unibilt

    BESTFIT TRUCK PARTS

    Now: $2,500.19
    Was: $2,777.99
    Chrome 7 Inch Exhaust Kit With 52 Inch Spool & Long Drop 90 Degree Elbows  - Exhaust Kit - Made Of Chrome-Plated Steel - Length 96 Inch - (2) 7 O.D. X 44 Inch West Coast Turn Out Chrome Top Stack Lincoln - (2) Exhaust Spool 7...
    Now: $2,500.19
    Was: $2,777.99
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $2,500.19
    Was: $2,777.99
    Subtotal:
  • On Sale
    BESTfit 7-5 X 96 Inch Chrome Exhaust Kit W/  West Coast Turn Top Stack W/ 5 Inch Taper Lock Chrome Tee Long 90S & Chrome Tapered Y-Pipe Peterbilt (1987-2003) 52 Inch Standard Spool Non-Unibilt BESTfit 7-5 X 96 Inch Chrome Exhaust Kit W/  West Coast Turn Top Stack W/ 5 Inch Taper Lock Chrome Tee Long 90S & Chrome Tapered Y-Pipe Peterbilt (1987-2003) 52 Inch Standard Spool Non-Unibilt
    Add to Cart

    BESTfit 7-5 X 96 Inch Chrome Exhaust Kit W/ West Coast Turn Top Stack W/ 5 Inch Taper Lock Chrome Tee Long 90S & Chrome Tapered Y-Pipe Peterbilt (1987-2003) 52 Inch Standard Spool Non-Unibilt

    BESTFIT TRUCK PARTS

    Now: $2,932.19
    Was: $3,257.99
    BESTfit Chrome 7 Inch Exhaust Kit With 52 Inch Spool Fits Peterbilt  - Exhaust Kit  - Kit Includes:  - (2) West Coast Turnout Top Stack   - (2) Center Spools   - (2) 7 Inch To 5 Inch Long Drop Elbows   - (4) Exhaust Brackets...
    Now: $2,932.19
    Was: $3,257.99
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $2,932.19
    Was: $3,257.99
    Subtotal:
  • On Sale
    BESTfit 7-5 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 Standard Spool Unibilt BESTfit 7-5 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 Standard Spool Unibilt
    Add to Cart

    BESTfit 7-5 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 Standard Spool Unibilt

    BESTFIT TRUCK PARTS

    Now: $3,198.59
    Was: $3,553.99
    BESTfit Chrome 7 Inch Exhaust Kit With 52 Inch Spool Fits Peterbilt  - Exhaust Kit  - Kit Includes:  - (2) Bull Hauler Turnout Top Stack  - (2) Center Spools  - (2) 7 Inch To 5 Inch Long Drop Elbows   - (2) Cab Brackets...
    Now: $3,198.59
    Was: $3,553.99
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $3,198.59
    Was: $3,553.99
    Subtotal:
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