[cleanspeed1]

I'll tell you what I would do if I had a TSX. With the type of powerband it has, I would either put an Eaton TVS style supercharger, a Lysholm screw compressor or a Rotrex on it and regear it. With the modern designs, the parasitic losses are not as bad ( they have a bypass when not in boost ), and the instant boost beefs up the bottom end torque really nice, which is what Honda engines need. The added air plus some careful tuning boosts the mileage, and the bottom end torque allows lower shift points. Not a cheap way to go, but what the heck, it's only money.