Quick question. I'm about to go put a deposit down on an 04 WRX. My questions are:
(1) Is it worth getting the factory turbo gauge, or should I go aftermarket. Aftermarket gauges seem to measure in PSI where as the Subi one is measured in MPa's. (Pascals?)
(2) How do MPa's and PSI's relate?
(3) I plan on upgrading with either a boost controller or getting the ECU flashed. Either way, I'm looking at higher boost. I heard that the WRX can up to 16PSI on the stock injectors, is this right?
(4) Also, the on the factory turbo gauge is 15 MPa's. Not sure how that relates to PSIs and if 16 will be measurable.
Thanks ahead of time for answering this New-B's questions.