Originally Posted by grant_jr
M20b25. Looking to do a low boost application, going to use the TCD chip and AFM tune. 5-7 psi.
For about two weeks... then you'll be looking to run more boost... trust me, that's how boost works...and once you want more boost you'll need a standalone.
You're better off to get a stand alone right from the start so you can ditch the AFM and not have to monkey around with RRFPRs. If you can manage a soldering iron you can build a DIYPNP MS kit for about $450... which isn't that much more than the TCD chip will cost and it gives you unlimited flexibility for tuning.