[Vracer111]

I wouldn't skimp with a minimum turbo install...the FR-S/BRZ have a heat issue since the engine bay is kind of sealed. My FR-S is stock powertrain wise and the coil pack 1 deteriorated from the heat within 2 years of daily driving. It sees up to 220-230F oil temps just daily driving, I've seen 240F once when I was pushing it in the winding roads of the Texas hill county, which lead to replacement of an ECM that finally crapped out (I do have one of the first batch of cars sold which supposedly had a troubled factory ECM). You'll want to do everything you can to manage and extract the heat in the engine bay and keep the car running reliably.

For a slightly different route, why not supercharge instead - you'll have less heat issues and retain a more instantaneous engine response. Innovate twin screw charger would be my preference of install if going FI (but I'm not a huge fan of FI at all...) With the car completely stock engine wise I'm thinking to get a transmission cooler because the fluid in the reservoir deteriorates and breaks down twice as quickly as the fluid in the brake reservoir... car runs HOT! Currently looking into venting the engine bay via making the fender vents functional (will be a first for the TRD aero ones I have) and using heat absorptive and reflective films for critical components in the engine bay.