Chris’s first-drive reaction
Original AWD Tuning customer video · April 26, 2023.
KEITH’S AWD TUNING ARCHIVE / 2020 SUBARU STI
Chris’s 2020 STI.
Stock turbo. Flex fuel.
Chris’s 2020 STI was one of the first Green Speed-compliant flex-fuel cars we built at AWD Tuning. This stock-turbo, bolt-on package brought together the hardware, fuel system and calibration.
No payment required to ask. This is historical work from my time at AWD Tuning; results belong to this particular setup.
THE OWNER’S EXPERIENCE / APRIL 26, 2023
Hear it from Chris.
AWD’s original feature follows Chris on his first drive after the initial installation and tune. The post describes a low-mileage STI that arrived stock, with a brief to make it feel like a more complete factory package.
Watch here with optional English captions; unclear speech is marked. The original Facebook link remains available. This first drive predates the May flex-fuel session below.
THE SETUP
Early Green Speed flex fuel.
The original turbo.
This is a stock-turbo, bolt-on STI example. The April feature lists a COBB SF intake, Accessport and boost controller, plus exhaust, fuel-delivery and drivetrain work. HKS HiperMax coilovers were also part of the package.
A later AWD exhaust comparison documents Chris’s COBB catback and catted downpipe. AWD’s May 10 flex-fuel feature then records the NexGen Flex Fuel installation and tune on this 2020 STI.
The stock turbo was one part of a broader package. For a similar STI, I review the complete parts list and flex-fuel hardware before choosing the calibration.
ORIGINAL DYNO RECORDS / TWO DATED SESSIONS
Pump gas, then flex fuel.
These figures come from the individual Mustang Dynamometer run summaries in my AWD archive. The file labels identify the April record as 93 octane and the May record as E75.
93 octane · April 24, 2023
305.0 hp · 332.5 lb-ft
Run time 12:37:44 p.m. Power peaks at 5,867 rpm; torque peaks at 3,607 rpm.
E75 · May 5, 2023
334.9 hp · 387.9 lb-ft
Run time 12:43:25 p.m. Power peaks at 5,863 rpm; torque peaks at 3,555 rpm.
These are separate dated records with fuel and calibration changes. They are not a controlled fuel-only test or a promise of output for another STI. Figures use the report’s hp and lb-ft labels; dyno setup, correction and conditions matter.
YOUR STI / YOUR NEXT STEP
Plan the tune around your car.
Send your STI’s year, current hardware, tuning device and the fuel you want to use. If you are deciding between a single-fuel and flex-fuel service, I can help confirm the route before you order.