Check out this independent testing video on a big inch NA C6Z!
Our new Sheetmetal Lid for HiRam/LoRam Flanged manifolds. These are constructed entirely in house from USA processed aluminum. The 1/2" thick billet aluminum flange ensure a tight seal with the manifold you're bolting it to and the unique radially formed plenum will ensure she will handle whatever boost you choose to throw at it. Our 105mm opening, 3d contoured, throttle body flange has both Ford and LS bolt patterns to accommodate almost any throttle body out there.
-Fits Holley Hiram, MidRam and LoRam manifolds for LS, LT, SBF, and Gen 3 Hemi applications.