Hey guys just a quick question, If I where to de-cat the exhaust what would I need to do about the sensor that's in the cat can it just be left out or will it cause problems ?
My car is decat what you need to do is purchase an O2 sensor which is readily available from Ebay. I got mine for a few bucks from USA. It stops the car from reading rich / lean measurements which thus stop your engine light or CEL from showing on your dash saying that there is an issue.