Vibrant Performance 13034 1.75" Od 90 Degree Mandrel Bend Stainless Bends Radiant Speed Works Vibrant Performance U J Mandrel Bend, 1.75" O.D. Vibrant Performance 18296 1.625" 90 Degree Mandrel Bend Stainless Vibrant Performance 304 Stainless Steel UJ Mandrel Bends. Description: U J Mandrel Bend, 1. 5" O. D. Material: T304 Stainless Steel Warranty: One Year Limited Warranty Part Specifications: Tube Diameter 1. 75" O. D. U Bend Centerline Radius 2. 75" Leg Length A 4. 5" Leg Length B 8" Leg Length C 8" Tube Thickness 0. 065" (1. 65mm) Vibrant's unique U J Mandrel Bent Tubing combines a 180 degree bend and a 45 degree bend into one integral unit to give fabricators the ability to get up to 3 seperate bends and a substantial straight length from each piece. Ideal for building custom exhaust systems, headers, downpipes, intercooler piping, etc. T304 Stainless Steel is a non magnetic alloy that possesses very high chromium and nickel content, making it much more capable of withstanding acidic, high heat and corrosive conditions than regular (mild) steel.