Bobafett You think i should take it to the dealer? Because it didnt do that before. Although i must admit it feels faster to me now then before. Others are talking about this too. Hmmmmmmm well its not running bad, but it sounds like a weak turbo with a quiet bov. Wonder if it will get louder with my KandN's installed been sittin in my hatch for 2 weeks now. Thought maybe i should wait awhile till i put them in. Only 500 miles on the XF. Oh the lights look wicked. Did you get your exhaust yet?