Vibrant Performance 321 Mandrel Bent Tubing

Vibrant Performance’s all new 321 Stainless Steel Mandrel Bends offer a dynamic solution to common issues found in 304 Stainless Steel.

A New Way to Handle the Heat

Vibrant’s  all new 321 Stainless Steel Mandrel Bends are ideal for applications such as endurance racing, turbo manifolds, high heat and high output performance engines, and rotary headers where the issue of elevated EGT’s are common. Whereas 304 Stainless Steel is susceptible to heat stress fractures and failures, 321 Stainless Steel maintains its strength through temperature ranges above 1400°F (760°C). Vibrant Performance 321 Stainless Steel Mandrel Bends are available in 180° U-Bends, 90° U-Bends and Straight Tubing, with 16-gauge and 18-gauge wall thickness options. Our new offering of 321 Stainless Steel Mandrel Bends are characterized by increased tensile strength and superior corrosion resistance, meaning users can expect better strength and reliability at higher temperatures.

Product Usage and Compatibility

  • 321 Stainless Steel Mandrel Bends can be welded to 304 using a 308L filler or 347 filler rod
  • Always use a 347 welding rod when welding to 321 Stainless Steel
  • Cannot be welded to Titanium
  • See the Vibrant Performance catalogue for our filler rod offerings

Size and Style Offerings

  • 18 Gauge (0.049”)
  • Recommended for non-load bearing applications
  • Rotary NA headers
  • Supported turbo set ups
  • Ideal when weight is a concern
  • 16 Gauge (0.065”)
  • Recommended for applications where EGT’s are above 1400°F (760°C) but lower than 1800°F (982°C)
  • Turbo Manifolds
  • Endurance
  • 180° and 90° bends along with straight sections available between 1-1/2” to 3.0” diameter tubing
  • Refer to our catalogue for details

Pricing and Availability

  • Our lineup of new 321 Stainless Steel Mandrel Bends will be available globally at all authorized Vibrant Performance warehouse distributors and online retailers.