For Mazda 3 Aluminum Performance Intake Manifold - MZR Engine TIG welded CNC machined flange Direct Bolt-On Design. Fits OEM or aftermarket throttle body Ideal for turbocharged and naturally aspirated applications Runner Ports Dimensions: 2" X 1.5". Throttle Body Opening Dimensions: 64mm Overall Dimensions: 19" x 10" x 8.5"