CLOSEOUT Builder's Exhaust Pipe Kit



Direct from Biltwell! These are genuine, new-in-box Biltwell products. They are closeout items which have been discontinued and are no longer available through our regular dealer network so we are selling them at clearance prices. Shipped within 2 days of order directly from Biltwell HQ in Temecula, CA.  Since these are limited quantity items that are being closed out at a discount, there are no returns, exchanges or refunds. These closeout items are not available anywhere else.


This kit makes it possible to fabricate from scratch a complete set of straight pipes for your custom Big-Twin powered chopper. NOTE: not available for sale in California—see Fitment.

Technical Details

  • Cold-rolled 1-3/4-inch O.D. high-tensile steel tubes with 16-gauge walls
  • Five H-D compatible header flanges included: Panhead, Shovelhead, STD, Ironhead and Evo
  • Two large radius (3.5"/89mm) 180-degree bends with straights
  • Two small radius (2.5"/63mm) 180-degree bends with straights
  • Two 45-degree bends with straight tubes and bologna-cut ends
  • Two straight tubes with flattened tube ends for custom exhaust tip designs
  • Two flared trumpet ends

    Install Tips

    This is a DIY product for skilled motorcycle builders and metal fabricators only. Each kit includes enough straight and bent 1-3/4-inch O.D. tubing to fabricate a couple sets of open exhaust pipes for your chopper, depending on the complexity of your custom design. Header flanges for five different H-D cylinder styles are included with each kit: Panhead, Shovelhead, Ironhead, Evo and STD. WARNING: The California Air Resources Board (CARB) prohibits the sale or use of any aftermarket accessory that alters or modifies the performance of original-equipment emission-related components on motorcycles other than on racing vehicles on closed courses, or by Executive Order from CARB authorities. Check your local laws and motorcycle manufacturer's documentation for more information.

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      Easy Exchange Policy

      We’ve got a no hassle approach to exchanges and even cover shipping both ways in the USA. Dig in to the details for all returns and exchanges here.

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      Free shipping over $100

      Spend over $100 in our online store and your order ships for free within the USA. Orders placed before 2:00PM PST generally go out the same day so you get your stuff fast.


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    Anthony D.
    United States United States
    Great Product

    You can never go wrong using Biltwell

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