1. I've seen that said here more and more over the years. When I bought them I figured they wouldn't really hurt anything and be more of a "future proof" mod but they are getting a little old and I just found out stock plugs are dirt cheap on Rock Auto so I have a set on the way now. I am going...
Hi, first ever post here. I have a 2011 Speed3 with an engine or something near it that makes the knock sensor go apeshit around 1750-2500RPM and light load (the problem actually seems to get better the more gas I give it; WOT is normal but I don't like getting on it too much because of my tune...