I am getting a quote on a professionally made tig welded mandrel stainless version right now. It will realistically be several weeks or a month before I have a prototype on a car. If someone is interested in beta testing this let me know. I would do it but the problem is that I don't have a car that can be down for any length of time, and I don't want to take a set of twins off, then put them back on, then take them off again. The beta test manifold would be free to this person, but it would need to be installed, then removed for any changes that need to be made, and then the new version will be given to them free. This person needs to have a healthy 1jz engine, a 7m exhaust system, a good ct26 (50-57trim preferred), and an afc. I will pay to have it dyno'd before and after the ct26 is installed.