Hi All, I've just bought a k&n 57i kit (Suposedly!) from a guy off e bay but it doesn't seem too fit on my ODB2 air pipes as its too small/ narrow. Are there two types of 57i kit? One for early and one for later cars? If not, the filter has two holes in the base, one for a sensor and one for as a breather, I think, can anyone shed any light on this for me? It might just be completly wrong anyway. Could someone with either an early or late car fitted with a k&n 57i kit please put a photo up to show me what it should look like? After all this I might just fit a panel filter instead! Than