Originally Posted by R1andrew
With the F4R. Can I go with a power commander or do I need something else if I switch out the exhaust and go with future mods? I think I have seen where some poeple are using both. Power commander is much cheaper than the ECU. What are the pros and cons of both.
got the race ecu on mine massive improvement but still runs a tad rich at the top end so still could be improved with a pc111 i will get the pc111 as well