I have a 2001 mille with 57's pc3 opentop airbox akra sillencer and link pipe not sure onvthe chip though. I haveing issues with low rpm bogging also backfiring and missfireing through the air box its even started cutting out? funny thing is theres been two ocasions ive gone out in the morning and its started finevand ran fine then a couple days later it ewill start running bad again pretty sure its electrical