I've gone to making my headers out of stainless. Way better, less hassles with rust and fatigue. You can get mandrel U-bends of every flavor from Woolf Aircraft in Romulus MI.https://www.woolfaircraft.com/?utm_source=google&utm_medium=organic&utm_campaign=GMB
You might look at Shoenfeld Headers (? ) web site - lots of oval track headers and parts. I have used them for plates and u bends.
Quote from: THE FRENCHTOWN FLYER on May 13, 2020, 04:48:39 PMI've gone to making my headers out of stainless. Way better, less hassles with rust and fatigue. You can get mandrel U-bends of every flavor from Woolf Aircraft in Romulus MI.https://www.woolfaircraft.com/?utm_source=google&utm_medium=organic&utm_campaign=GMB I've been told Stainless headers crack up? Is that an urban myth?