If you're a DIY manifold builder this collector is a must have! This is our investment cast turbo merge collector for the PTE and TIAL V-band turbos. Made from 304 stainless steel, designed to work with 1.5" schedule 10 or 40 nominal pipe. This collector will save you hours of labor, no more wasting material trying to figure out angles on the band saw. Reduce welding and porting time drastically. Features include smooth internals, radius flow pattern, and a properly placed smooth radius wastegate port. Collector angle is 35° with an overal height of 3". OD of collector at flange base is 2.4".