− Decrease quantity for Exhaust Tubing, Mandrel-Bent Round Tubing, 2.250 in. Bend Radius, U-bend, 304 Stainless, Natural, 2.500 in. O.D. Ends, 6.00 in./6.00 in. Lengths, Each Quantity + Increase quantity for Exhaust Tubing, Mandrel-Bent Round Tubing, 2.250 in. Bend Radius, U-bend, 304 Stainless, Natural, 2.500 in. O.D. Ends, 6.00 in./6.00 in. Lengths, Each Add to cart