4" Inch 100mm Exhaust Pipe Mandrel Bend Stainless 45 To 180 Degree Bends - ExoFlow
Cycle Standard 1.75 inch Exhaust Tubing Mandrel U Bends 4 inch Centerline Radius – Lowbrow Customs
Exhaust Pipe Mandrel Bend - Pair - Mild Steel - 2 1/4 Inch - Premium Heavy-Duty Construction - Perfect for Custom Exhaust Systems - Easy to Weld - Universal Fit - Walmart.com
JMD Tubes - Mandrel Bend - Stainless Steel - 2-1/2" on a 4" CLR - 45° #MB-SS-25040045
Squirrelly 2" 180 Degree U 304 SS Stainless Steel Mandrel Bends Pipe Exhaust Fab | eBay