i've been driving my ka-t setup (t25, sr injectors, fmic, etc.) for a about 6 months with no tune, and it's always ran flawlessly.
well i decided i should get an fmu because i'm sure it runs lean in boost. after i put it on the engine struggles at idle sometimes or refuses to. and my vacuum is all acting up :/
and even when i go into boost it struggles and bogs.
does anyone have any insight?? i'm thinking about just ripping this thing back out and forgetting about it. -__-


