Has anyone purchase the K&N air filter for the Si4? Any better response from your SOTP? I had one in my W211 E500 and it fouled up my MAF but I have 2 conical K&N on my jag right now and it's running fine. I think the key is to wipe down the excess oil when it comes from factory so the oil doesn't flow to the MAF and stick to the sensor. I ordered one for the Evoque and waiting for it to arrive. Just seeing if anyone else have one on their Evoque and your thoughts.