Through searching, I was unable to find the material some used. I have the means to have one laser cut, etc. If one used steel, it would tend to rust I would think. Using 1/4" thick piece of aluminum adequate? Then I am assuming torque it down to where it seals tightly. The intake side, I will purchase a 49-state version. I know AFE makes a horn. Are there others out there? One better than the other?
Jace
Jace