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WATCH / 2018 SUBARU STI / EMTRON

Lucas’s STI on the dyno.

Lucas’s 2018 Subaru STI at AWD Tuning. Tuning by Keith Fields. Use the player controls for sound, captions and full-screen playback. Privacy-edited version published here November 2, 2026.

The build behind the footage.

Lucas’s STI is the car I describe as my “ultimate GT STI.” Its Emtron chapter combines a Rallispec long-block, Kelford 264 cams and a rotated BorgWarner EFR 7670 turbo, with three SI-Drive power modes and an emphasis on response and smooth drivability.

The complete story includes separate January 2025 reports for 93 octane and E80, alongside the earlier development history. Those dated reports establish the results; this clip is presented as footage of the car, without assigning a particular fuel or peak output to the filmed run.

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AWD’s January 2025 build feature ↗ · More tuning videos →