After my "bafflectomy", cat removal and S&S stealth air filter installation the standard ECU did not allow big enough adjustment to allow the engine run well on both low ang high rpm´s.
I changed the ECU to the S&S VFI Module Kit 55-5090 from Delphi and had a local tuner fine-tune the standard mapping. The engine now is running better then ever. As far as I understand this ECU is still available?
