MagnaFlow's stamped Y-Pipe transitions are ideal if you’re looking to design your exhaust for a single inlet, dual outlet set up. Made of stainless steel, MagnaFlow Y-Pipes offer a gentler radius that allows for better balance between cylinder banks and consistent flow in tight constrained areas. Available in several diameters and configurations including the regular Y, 90° inlet, and giant 4", our Y-Pipe transitions are also backed by a lifetime warranty. PartNumber : mag10800 Description : Smooth Trans Y 3.50/4 x 13in. C/D SS Material : Stainless Warranty : Lifetime Title : Accessory WARNING CA Proposition 65 : No California Proposition 65 : WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov Exhaust, Mufflers & Tips::Catalytic Converter Universal