nice, do you have to send in your old one?MeanGreenS13 wrote:i just spoke to Mike Sims at Tophat. They do still make (just started again) the RB20DET Plenum. altho he admits it didnt sell to well because it was small. He said for an additional $150 over the current $400 asking price that they could make me a larger plenum (4.5 inches) in the same design, but tucked in a little closer to the motor so its not so extremely spread out. do you guys think this would be a good option?