This Aluminum Flange is designed to have a HKS SSQV BOV (or compatible) attached directly to it. The required mounting hardware should have been included with your BOV (they are not included with this item.) The bottom end of this flange is a 1.25" tube, making it easy to connect to your intake with the use of a silicone or rubber coupler and clamp, with no welding required.
BOV is sold separately.This T-Pipe works perfectly with our Type 3, Type 14, or Type 15 BOV.