Hey guys, I'm a new RalliArt owner (1700 miles so far).
I live in the Milwaukee area and am looking to get an AMS HFC installed along with the boost pill and a tune. Does anyone know of a shop around here that I could call to set this up? I do have some buddies that do tunes, and could throw the GST map on, but I don't know if the GST map is valid on 2015's, or if it works for HFC + Boost Pill only (not doing full TBE).

Any suggestions or help would be appreciated guys.

 

If you're going to do the boost pill you HAVE to do at LEAST the GST basemap. Otherwise you'll cause an overboost situation.

 

The 2013, 2014, and 2015 RAs all seem to use the same ROM, so the GST Basemaps will work fine. Why would you get a HFC and NOT do the rest of the exhaust? You'd just be restricting the HFC. The GST Basemaps description highlights in bold "a high flow cat (or test pipe) plus a catback" so I think that recommendation is pretty clear.

 

If not replacing the catback, he would just use the basic GST boost-pill map for whatever fuel he has available and would just lose out on the extra oomph that he would get with a full exhaust and the TBE variant of the basemap. Its still a HUGE improvement over the stock settings and will give a little deeper sound to his exhaust without going too loud.

But to confirm the original answer, yes, the GST map is enough to get you by safely and the same one is used for 2013-15