Did you get any further resolution from your tuner? The MAP Stage 2 kit I just bought arrived and when I called MAP about the tune, they told me that it isn't an if, but a when, I get the CEL for the cat as they break down over time apparently.I know some not all have been feeling the turmoil that Cobb unleashed on us but it was definitely coming we seen the signs sadly is here. Deletes are a no go, FF is a no go. I called my tuner for advice since I have 1050x injectors, EBCS, AEM 340 pump to name a few of the mods I was planning on installing on my 16 STI. I ask him should I bother to buy the FP Blue, fuel pressure regulator, turbo inlet, EWG and up pipe for my build but he said he is still not sure what we will be able to tune for after the deadline takes effect. Anyone with some insight know if I am good to continue with this build?? I have not deleted anything from my car and don’t plan on doing FF. I am currently Pro tuned for Cobb big SF, Maperformance down pipe with high flow cat, IAG AOS, 4 cylinder cooling mod, AWE Track edition catback. I want to continue my current build with a goal of 380whp MAX. I know you can probably go higher but that’s what I want on stock internals. Like I mention I still have my secondary air pump, TGV’s, EGR and don’t plan on deleting any or go FF.
I am in the same boat as you since I started grabbing fuel system parts and if I can't manage to upgrade bigger items (turbo, headers/etc), then it doesn't make sense to add the fuel system components I don't think. I haven't approached a tuner yet as I don't want to add to the work load since I still need to get the parts installed. Don't want to tie up a tuner's time by just asking questions at this point.