Biltwell 1.75" Exhaust Builder Kit

The builder's exhaust kit is exactly what its name implies: a selection of pre-fabbed tubing, header flanges and exhaust tips that puts the art of custom exhaust building in the hands of the  fabricators. Exhaust pipe tubing measures 1.75" diameter and is made from heavy duty 16 gauge raw steel. All sections are pre-polished to make chroming after joint finishing easier.


  • Two 45 degree upsweep bends with slash cut tips
  • Two 16" long straight sections with flattened cuts
  • Two 6" long straight sections with trumpet flares
  • Two 3.5" radius U-bends with straight sections
  • Two 5" radius U-bends with straight sections
  • Two Evolution style flanges
  • Two Shovelhead flanges
  • Two Ironhead flanges
  • Two Panhead flanges
  • Two STD flanges
Fitment Notes & Exceptions
  • Open pipes are not street legal in many areas and are for competition off-highway use only
  • This kit will require skilled fabrication and does not come with mounting brackets
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Product Style Item # Manufacturer Product # Availability
Raw 889796 EK-STL-00-RS In Stock: Ships next business day