Here we go into another saga of Fireblades little Nazi. Aight guys put new Set of iridium ngk plugs in the JET. But before this I was throwing a P0420 a catalyst below threshold. Then did tune up like stated 3 days later car is running horrible turns out I'm throwing a p0420 and a p0302. Catalyst and cylinder 2 misfire. Now I received a letter in the mail from VW stating there is a recall on the coils. So took it to dealer to fix coil recall now let's see what else they try to get me for this time last time they tried to get me for $1,200 bucks when CPU just needed to be reset. N E how. I was told the p0420 code meant nada (nothing) just a inspection deal. So um guess Brother Boost or anyone have any relative thoughts.