How I did mine. Tune, Intake, Down pipe. For me it depends how often I drive my car hard to get an FMIC. MaxCool On does an ok job for me right now. I would love to get the Helix but for just 5hp increase? I'm not feeling that. Maybe if we had a bigger turbo.
JB4 S2 ISO Map7, BMS Intake, BMS Chargepipe, BMS Downpipe, BMS OCC, Flex fuel wires.