or he can just get a new chip and run the ecu he has vafc's are junk so is every other type of piggyback signal modifier especially greddys blue box.... get a base map chip from one of the reputable tuners here so you know it will run your car correctly once you have it running take it and tune it or just run a stock program ...i like to tune any setup i get whether it be boosted or i/h/e normal asp. it makes it much more responsive and you grab those extra ponies