I was checkin' that Speedmaster unit out a while back. Tis a shame they don't actually have videos of of some of their products in action, like some other vendors. In this case, I would say contact the EZ-EFI company and see what, if any, experience or knowledge they may have. Perhaps some feedback from customers? I would think they would have at least tried a unit in-house before partnering up on this piece. And note that the polish job on the Speedmaster intake is marginal at best, and would take some detail work to look properly bitchin'.