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Borla XR-1 Racing Mufflers


Borla
Borla XR-1 Racing Mufflers

Product images may differ from actual product appearance.

XR-1 Racing Mufflers are the choice of today's hottest drag and oval track racers. With a patented straight-through design and multicore technology, XR-1 Mufflers actually outflowed a straight pipe in repeated testing. XR-1 Race Products are made in the USA of quality austenitic stainless steel for track-tough durability. They use sound-absorbing stainless steel packing to prevent burnout and meet the strictest noise requirements. Hands down, Borla's XR-1 Series offers the best balance of sound and power.

Features
  • Multicore technology
  • Straight-through design for maximum flow
  • Austenitic stainless steel for reduced weight
  • Welded 1-piece construction for improved integrity
  • Sound-absorbing stainless steel guards against burnout



  • 13 Products
    Hooter's Series Slim Line Mufflers

    157-40536
    XR-1 Hooters Slim Line Muffler
  • Type: Oval
  • Inlet Diameter: 3-1/2" Oval
  • Outlet Diameter: 3-1/2" Oval
  • Case Size: 12" x 3" x 7.88"
    More info on Borla 40536
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  • $230.99
    Order Today Ships 04/29/14
    Multi-Core Racing Mufflers

    157-400115
    XR-1 Multi-Core Racing Muffler
  • Type: Oval
  • Inlet Diameter: 3''
  • Outlet Diameter: 3''
  • Case Size: 34'' x 8-1/2'' x 5-1/2''
    More info on Borla 400115
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  • $434.99
    Order Today Ships 04/29/14

    157-400371
    XR-1 Multi-Core Racing Muffler
  • Type: Oval
  • Inlet Diameter: 3''
  • Outlet Diameter: 3''
  • Case Size: 16'' x 4-1/4'' x 7.88''
    More info on Borla 400371
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  • $265.99
    Order Today Ships 04/29/14

    157-400372
    XR-1 Multi-Core Racing Muffler
  • Type: Oval
  • Inlet Diameter: 3''
  • Outlet Diameter: 3''
  • Case Size: 12'' x 4-1/4'' x 7.88''
    More info on Borla 400372
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  • $239.99
    Order Today Ships 05/29/14

    157-40575
    XR-1 Multi-Core Racing Muffler
  • Type: Oval
  • Inlet Diameter: 3''
  • Outlet Diameter: 3''
  • Case Size: 16'' x 4-1/4'' x 7-7/8''
    More info on Borla 40575
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  • $278.99
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    Sportsman Racing Mufflers

    157-40941
    XR-1 Sportsman Racing Muffler
  • Type: Oval
  • Inlet Diameter: 2-1/2''
  • Outlet Diameter: 2-1/2''
  • Case Size: 12'' x 4-1/2'' x 7.88''
    More info on Borla 40941
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  • $141.99
    Order Today Ships 04/29/14

    157-40942
    XR-1 Sportsman Racing Muffler
  • Type: Oval
  • Inlet Diameter: 2-1/2''
  • Outlet Diameter: 2-1/2''
  • Case Size: 16'' x 4-1/2'' x 7.88''
    More info on Borla 40942
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  • $153.99
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    157-40943
    XR-1 Sportsman Racing Muffler
  • Type: Oval
  • Inlet Diameter: 3''
  • Outlet Diameter: 3''
  • Case Size: 12'' x 4-1/2'' x 7.88''
    More info on Borla 40943
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  • $149.99
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    157-40944
    XR-1 Sportsman Racing Muffler
  • Type: Oval
  • Inlet Diameter: 3''
  • Outlet Diameter: 3''
  • Case Size: 16'' x 4-1/2'' x 7.88''
    More info on Borla 40944
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  • $153.99
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    157-40945
    XR-1 Sportsman Racing Muffler
  • Type: Oval
  • Inlet Diameter: 3-1/2''
  • Outlet Diameter: 3-1/2''
  • Case Size: 12'' x 4-1/2'' x 7.88''
    More info on Borla 40945
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  • $175.99
    Ships

    157-40946
    XR-1 Sportsman Racing Muffler
  • Type: Oval
  • Inlet Diameter: 3-1/2''
  • Outlet Diameter: 3-1/2''
  • Case Size: 16'' x 4-1/2'' x 7.88''
    More info on Borla 40946
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  • $188.99
    Ships

    157-40947
    XR-1 Sportsman Racing Muffler
  • Type: Oval
  • Inlet Diameter: 4''
  • Outlet Diameter: 4''
  • Case Size: 12'' x 4-1/2'' x 7.88''
    More info on Borla 40947
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  • $188.99
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    157-40948
    XR-1 Sportsman Racing Muffler
  • Type: Oval
  • Inlet Diameter: 3-1/2''
  • Outlet Diameter: 3-1/2''
  • Case Size: 16'' x 4-1/2'' x 7.88''
    More info on Borla 40948
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  • $211.99
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    13 Products