The factory Lotus shifter mechanism could certainly use some stiffening and this is just the kit to do it. Dramatically reduces the side to side and fore-aft flex of the stock shifter tower. This means more precise shifter movement and fewer missed shifts. Works great on the street or track; no drawbacks whatsoever. It works so well that Lotus started adding a similar brace right from the factory on 2008+ model years.
Simple installation with no special tools required. Shifter is braced to the floor using an existing threaded hole in the floor. Easy!