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 108 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 108 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 8-5 X 108 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: $3,266.99
    Was: $3,629.99
    Chrome 8 Inch Exhaust Kit With 52 Inch Spool & Long Drop 90 Degree Elbows  - Exhaust Kit  - Chrome-Plated Steel - Length 108 Inch - (2) Wide Angled Clamp 8 Inch Chrome-Plated Stainless Steel - (2) Exhaust Mount Grommets Pack Of 4...
    Now: $3,266.99
    Was: $3,629.99
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    Qty in Cart: 0
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    Price:
    Now: $3,266.99
    Was: $3,629.99
    Subtotal:
  • On Sale
    BESTfit 8-5 X 108 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 8-5 X 108 Inch Chrome Exhaust Kit W/  West Coast Turn Top Stack  Long Drop Elbows No Tee Peterbilt (1987-2003) 52 Inch Standard Spool Non-Unibilt
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    BESTfit 8-5 X 108 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: $3,032.99
    Was: $3,369.99
    Chrome 8 Inch Exhaust Kit With 52 Inch Spool & Long Drop 90 Degree Elbows  - Exhaust Kit  - Kit Includes:   - (2) 8 O.D. X 54 West Coast Chrome Top Stack   - (2) Exhaust Spool 8 Inch O.D. X 52 Inch Chrome Tapered Top  - (2)...
    Now: $3,032.99
    Was: $3,369.99
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    Qty in Cart: 0
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    Price:
    Now: $3,032.99
    Was: $3,369.99
    Subtotal:
  • On Sale
    BESTfit 8-5 X 114 Inch Chrome Exhaust Kit W/  Flat Top Top Stack  Long Drop Elbows No Tee Peterbilt (1987-2003) 52 Inch Standard Spool Unibilt BESTfit 8-5 X 114 Inch Chrome Exhaust Kit W/  Flat Top Top Stack  Long Drop Elbows No Tee Peterbilt (1987-2003) 52 Inch Standard Spool Unibilt
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    BESTfit 8-5 X 114 Inch Chrome Exhaust Kit W/ Flat Top Top Stack Long Drop Elbows No Tee Peterbilt (1987-2003) 52 Inch Standard Spool Unibilt

    BESTFIT TRUCK PARTS

    Now: $3,275.09
    Was: $3,638.99
    Chrome 8 Inch Exhaust Kit With 52 Inch Spool & Long Drop 90 Degree Elbows  - Exhaust Kit  - Chrome-Plated Steel - Length 114 Inch - (2) Wide Angled Clamp 8 Inch Chrome-Plated Stainless Steel - (2) Exhaust Mount Grommets Pack Of 4...
    Now: $3,275.09
    Was: $3,638.99
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $3,275.09
    Was: $3,638.99
    Subtotal:
  • On Sale
    BESTfit 8-5 X 108 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 108 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 108 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: $3,032.99
    Was: $3,369.99
    Chrome 8 Inch Exhaust Kit With 55 Inch Spool & Long Drop 90 Degree Elbows  - Exhaust Kit  - Kit Includes:  - (2) 8 O.D. X 54 West Coast Chrome Top Stack   - (2) Exhaust Spool 8 Inch O.D. X 55 Inch Chrome Tapered Top  - (2) Chrome...
    Now: $3,032.99
    Was: $3,369.99
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $3,032.99
    Was: $3,369.99
    Subtotal:
  • On Sale
    BESTfit 8-5 X 108 Inch Chrome Exhaust Kit W/  West Coast Turn Top Stack  OE Style Elbows  Peterbilt (2005-Newer) 55 Inch Standard Spool Non-Unibilt BESTfit 8-5 X 108 Inch Chrome Exhaust Kit W/  West Coast Turn Top Stack  OE Style Elbows  Peterbilt (2005-Newer) 55 Inch Standard Spool Non-Unibilt
    Add to Cart

    BESTfit 8-5 X 108 Inch Chrome Exhaust Kit W/ West Coast Turn Top Stack OE Style Elbows Peterbilt (2005-Newer) 55 Inch Standard Spool Non-Unibilt

    BESTFIT TRUCK PARTS

    Now: $2,728.79
    Was: $3,031.99
    BESTfit Chrome 8 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: 108 Inches - Peterbilt Style Elbows - 55 Inch...
    Now: $2,728.79
    Was: $3,031.99
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $2,728.79
    Was: $3,031.99
    Subtotal:
  • On Sale
    BESTfit 8-5 X 108 Inch Chrome Exhaust Kit W/  West Coast Turn Top Stack  OE Style Elbows  Peterbilt (1987-2003) 52 Inch Standard Spool Non-Unibilt BESTfit 8-5 X 108 Inch Chrome Exhaust Kit W/  West Coast Turn Top Stack  OE Style Elbows  Peterbilt (1987-2003) 52 Inch Standard Spool Non-Unibilt
    Add to Cart

    BESTfit 8-5 X 108 Inch Chrome Exhaust Kit W/ West Coast Turn Top Stack OE Style Elbows Peterbilt (1987-2003) 52 Inch Standard Spool Non-Unibilt

    BESTFIT TRUCK PARTS

    Now: $2,728.79
    Was: $3,031.99
    BESTfit Chrome 8 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: 108 Inches - Peterbilt Style Elbows - 52 Inch...
    Now: $2,728.79
    Was: $3,031.99
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $2,728.79
    Was: $3,031.99
    Subtotal:
  • On Sale
    BESTfit 8-5 X 108 Inch Chrome Exhaust Kit W/  Bull Hauler Turn Top Stack  Long Drop Elbows No Tee Peterbilt (1987-2003) 52 Inch Standard Spool Unibilt BESTfit 8-5 X 108 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 8-5 X 108 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: $3,335.39
    Was: $3,705.99
    Chrome 8 Inch Exhaust Kit With 52 Inch Spool & Long Drop 90 Degree Elbows  - Exhaust Kit  - Chrome-Plated Steel - Length 108 Inch - (2) Wide Angled Clamp 8 Inch Chrome-Plated Stainless Steel - (2) Exhaust Mount Grommets Pack Of 4...
    Now: $3,335.39
    Was: $3,705.99
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $3,335.39
    Was: $3,705.99
    Subtotal:
  • On Sale
    BESTfit 8-5 X 108 Inch Chrome Exhaust Kit W/  Bull Hauler Turn Top Stack  OE Style Elbows  Peterbilt (2005-Newer) 55 Inch Standard Spool Unibilt BESTfit 8-5 X 108 Inch Chrome Exhaust Kit W/  Bull Hauler Turn Top Stack  OE Style Elbows  Peterbilt (2005-Newer) 55 Inch Standard Spool Unibilt
    Add to Cart

    BESTfit 8-5 X 108 Inch Chrome Exhaust Kit W/ Bull Hauler Turn Top Stack OE Style Elbows Peterbilt (2005-Newer) 55 Inch Standard Spool Unibilt

    BESTFIT TRUCK PARTS

    Now: $3,026.69
    Was: $3,362.99
    BESTfit Chrome 8 Inch Exhaust Kit With 55 Inch Spool Fits Peterbilt  - Made Of High Quality Chrome-Plated Steel - Sleeper Type: Unibilt - Top Cut: Bull Hauler Turnout - Length: 108 Inches - Peterbilt Style Elbows - 55 Inch...
    Now: $3,026.69
    Was: $3,362.99
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $3,026.69
    Was: $3,362.99
    Subtotal:
  • On Sale
    BESTfit 8-5 X 108 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 108 Inch Chrome Exhaust Kit W/  West Coast Turn Top Stack  Long Drop Elbows No Tee Peterbilt (2005-Newer) 55 Inch Standard Spool Unibilt
    Add to Cart

    BESTfit 8-5 X 108 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: $3,266.99
    Was: $3,629.99
    Chrome 8 Inch Exhaust Kit With 55 Inch Spool & Long Drop 90 Degree Elbows  - Exhaust Kit  - Chrome-Plated Steel - Length 108 Inch - (2) Wide Angled Clamp 8 Inch Chrome-Plated Stainless Steel - (2) Exhaust Mount Grommets Pack Of 4...
    Now: $3,266.99
    Was: $3,629.99
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $3,266.99
    Was: $3,629.99
    Subtotal:
  • On Sale
    BESTfit 8-5 X 108 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 108 Inch Chrome Exhaust Kit W/  Bull Hauler Turn Top Stack  Long Drop Elbows No Tee Peterbilt (2005-Newer) 55 Inch Standard Spool Non-Unibilt
    Add to Cart

    BESTfit 8-5 X 108 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: $3,100.49
    Was: $3,444.99
    Chrome 8 Inch Exhaust Kit With 55 Inch Spool & Long Drop 90 Degree Elbows  - Exhaust Kit  - Kit Includes:  - (2) 8 O.D. X 54 Bull Hauler Chrome Top Stack   - (2) Exhaust Spool 8 Inch O.D. X 55 Inch Chrome Tapered Top  - (2)...
    Now: $3,100.49
    Was: $3,444.99
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $3,100.49
    Was: $3,444.99
    Subtotal:
  • On Sale
    BESTfit 8-5 X 108 Inch Chrome Exhaust Kit W/  Bull Hauler Turn Top Stack  Long Drop Elbows No Tee Peterbilt (1987-2003) 52 Inch Standard Spool Non-Unibilt BESTfit 8-5 X 108 Inch Chrome Exhaust Kit W/  Bull Hauler Turn Top Stack  Long Drop Elbows No Tee Peterbilt (1987-2003) 52 Inch Standard Spool Non-Unibilt
    Add to Cart

    BESTfit 8-5 X 108 Inch Chrome Exhaust Kit W/ Bull Hauler Turn Top Stack Long Drop Elbows No Tee Peterbilt (1987-2003) 52 Inch Standard Spool Non-Unibilt

    BESTFIT TRUCK PARTS

    Now: $3,100.49
    Was: $3,444.99
    Chrome 8 Inch Exhaust Kit With 52 Inch Spool & Long Drop 90 Degree Elbows  - Exhaust Kit  - Kit Includes:  - (2) 8 O.D. X 54 Bull Hauler Chrome Top Stack   - (2) Exhaust Spool 8 Inch O.D. X 52 Inch Chrome Tapered Top  - (2)...
    Now: $3,100.49
    Was: $3,444.99
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $3,100.49
    Was: $3,444.99
    Subtotal:
  • On Sale
    BESTfit 8-5 X 108 Inch Chrome Exhaust Kit W/  Bull Hauler Turn Top Stack  OE Style Elbows  Peterbilt (2005-Newer) 55 Inch Standard Spool Non-Unibilt BESTfit 8-5 X 108 Inch Chrome Exhaust Kit W/  Bull Hauler Turn Top Stack  OE Style Elbows  Peterbilt (2005-Newer) 55 Inch Standard Spool Non-Unibilt
    Add to Cart

    BESTfit 8-5 X 108 Inch Chrome Exhaust Kit W/ Bull Hauler Turn Top Stack OE Style Elbows Peterbilt (2005-Newer) 55 Inch Standard Spool Non-Unibilt

    BESTFIT TRUCK PARTS

    Now: $2,796.29
    Was: $3,106.99
    BESTfit Chrome 8 Inch Exhaust Kit With 55 Inch Spool Fits Peterbilt  - Made Of High Quality Chrome-Plated Steel - Sleeper Type: Standard - Top Cut: Bull Hauler Turnout - Length: 108 Inches - Peterbilt Style Elbows - 55 Inch...
    Now: $2,796.29
    Was: $3,106.99
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $2,796.29
    Was: $3,106.99
    Subtotal:
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