Hey Guys, I have a S1 C34 Stagea with an RB25DET and Auto Has basic mods done (3" exhaust, 10psi, FMIC, Spitfires) Nistune does not offer an ecu for the S1 Stagea and most standalones can't control the auto properly so i've been looking at just running an e-manage piggyback. I'm just wondering what my limit would be with this ecu.. Am i able to run a slightly larger turbo, more boost and run a forward facing inlet manifold? Or can it only be used to tidy up the standard tune basically? Also does this get past r&r? Thanks