I bought the Fidanza and 6 puck sprung as a package deal for $500. I feel more power in the higher RPM's. Now everytime I shift and open up the throttle I skirt in second, which is someting I couldn't do with the stock OEM. Noticed better acceleration, and better idle. Defenitely a wise investment for those quick off the line starts. More power from the engine is focused on the wheels, rather than through the drive train. IMHO it drops drive train degredation.
