I dropped off the sheet metal for the vacuum plenum 2 days ago to get cut. I will be picking up the metal today. I am building a plenum that uses the idle air control valve, map sensor, and IAT sensor plus has output for the brake booster. The plenum will be about 7 inches in length and 2 inches square. I will be welding the box up within the next day or two and will post pictures of the completed plenum in a few days.

The flange is off a LS motor. Runner length will be 14" from valve face to tip of velocity stacks. Equal lengths on all 4 cylinders. Diameter of piping will be 1.75". Injector location will be stock location for the ITB's and NOT the stock honda location. These will be tested on my car and once all bugs worked out they will be sold as an entire unit.