This kit allows you to relocate the diverter valve from the hot side of the turbo to the cold side of the intercooler on the SEAT Ibiza MK3 1.8T engine. By relocating the valve in this way there are two benefits. Firstly, due to operating in lower temperatures the longevity of the valve is increased. Secondly, after relocation, the air that is recirculated back into the intake tract to the turbo will be cooler. Cooler air has a greater density. The greater the density of the charge mix in the cylinder the more power generated on combustion.