Well, yeah my ride got a chip, but I always get the highest octane number available.
Fuel filter - never changed it, but true - could be that.
EGR - yeah, I am gonna clean it.
Airfilter - nah, I don't think so, I guess I put only about 3K on my new one.
MAF - how one cleans the MAF? U mean - the outside of it + connections?
Tnx.
