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  • 321 Stainless Steel is widely used in drag racing, NASCAR, IndyCar, endurance road racing and Formula One for durability and to save weight
  • 321 Stainless Steel features titanium added to the basic nickel/chromium steel alloy for resistance to material fatigue and thermal cracking required in high heat environments
  • 1-5/8", 1-7/8” and 2" diameter tubing
  • 0.049” wall thickness

WARNING: This product can expose you to chemicals including Chromium (VI), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to

Flanges Cast Tight Radius Bends 321 Stainless Collector Flanges Collector Flanges Customer Rides Latest Install Flanges Cast Tight Radius Bends 312 Stainless

Ultimate Headers are sold exclusively through performance and installer shops. For products, specs and where to buy click here.