KEITH’S OWN CAR / 2015 SUBARU STI
Keith Fields’ white 2015 STI connects his engine-building work with his tuning: a built EJ257, successive turbo combinations and a later Emtron chapter. The archive follows the car through its changing configurations.
Explore the build history ↗
AWD’s 2016 turbo-development post describes Keith’s goal: a daily-driven STI with a useful power band, built around the requirements of the FIS class for events such as Import Face-Off. That balance gives the project its identity—hardware, response and the intended use considered together.
Keith confirms this is his own white 2015 STI. The Mexico STI, the older Texas Mile cars and other customers’ white Subarus are separate builds.
Read the original development brief →
THE CAR OVER TIME
AWD’s start-up video identifies Keith’s 2015 STI and documents its Stage 4 engine, Garrett GTX3582 and ETS turbo system. COBB Accessport tuning on E85 was planned, with a stated target of 575 whp.
The channel’s subsequent comment reports 644 whp and 567 wtq on E85 at 32 psi. That is a reported result for this early configuration, separate from later turbo and ECU development.
Watch the first-start video →A dated post names Keith’s new Precision 6270, with a 0.96 A/R and T4/v-band-outlet description. The combination retained the ETS turbo kit, FIC 2150 cc injectors and Radium fuel system, with a COBB exhaust mentioned for street use. The post explains the planned class fit and daily-driving goals; it does not publish a completed dyno result for that turbo.
Read the Precision development post →AWD’s photo post explicitly identifies Mr. Fields’ STI and calls out its Mickey Thompson tires. The caption references COBB, Feal, OS Giken, HKS and Precision, including a PTE6870 hashtag. These are references to the car at that point in its history, not a complete current parts list.
View the original two-photo post →AWD documents removal of Keith’s 2015 STI gearbox for a refresh ahead of a February 1 local meet. The post connects the same personal car with continued drivetrain work years after the original engine build.
See the transmission update →AWD’s video titled 2015 STi Emtron LC testing shows the white STI on the dyno. Its description identifies an Emtron KV8 and testing of motorsport functions. This is setup footage, not a timed acceleration run or a peak-power measurement.
Watch the Emtron test →DOCUMENTED FEBRUARY 2016 CONFIGURATION
These parts describe the original video’s configuration. The later Precision turbo and Emtron stages are recorded separately above.
Original build description →
HISTORICAL RESULTS
AWD posted these figures in its own follow-up comment on the February 2016 start-up video. They are a historical shop-reported result, not a promise for another vehicle.
ORIGINAL AWD ARCHIVE
This feature combines Keith’s ownership account, AWD’s dated posts, original photographs and channel descriptions. Specifications belong to the stage in which they were documented. Video publication dates are not assumed to be exact workshop dates.
Explore Keith’s wider history · More featured builds · Lucas Bamford’s GT STI
Start with your hardware, fuel and how you want to use the car. Discuss COBB custom tuning, Emtron calibration or an arranged dyno session.
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