The horsepower curve showed a smooth progression everywhere above 4,000 RPM until it reached its peak at 5,600 RPM and quickly fell off. Removing this dip would be essential to improving the car’s drivability both on the street and on the track. To other Subaru boxer engines we’ve tested in the past, the car in factory form showed peak torque values at about 3,300 RPM and again near 4,800 RPM, with a severe drop everywhere in between. This was accomplished with maximum boost reaching 16.62psi. Despite its all-wheel drive configuration, the car only experienced an approximate 13.5-percent drivetrain loss as it delivered 264.62 horsepower and 262.8 lb-ft torque to all four wheels. We strapped the WRX STI to DSPORT’s Dynojet 424xLC2 Linx Dynamometer to measure how much of the EJ257’s 305 horsepower made it to the wheels. The most straightforward and often most affordable upgrades begin with a reflash tune and an intake system. But before we dig into the more serious items like turbocharger upgrades and internal engine upgrades, we’ll explore the earlier stages of power adders starting with the basics. This D’Garage 2017 WRX STI aims to widen the performance gap. We have yet to perform a 0-60 MPH comparison, but common consensus says that the WRX isn’t far behind in this area of performance. Although the STI delivers greater peak power numbers at the top end with its larger turbocharger, dyno tests have revealed an advantage to the WRX in mid-range power. This makes the current WRX model only 37 horsepower shy of matching the STI’s output. As for straight line speed, its WRX counterpart is closing the gap with its new FA20DIT engine, which produces 268 horsepower. The ride comfort is certainly on the rougher side, but the car loves corners more than ever. The redesigned 2015 and newer models implement numerous changes, one of the most notable being a significantly more rigid chassis. However, this long proven engine now sits in an all-new chassis as of the 2015 model year. The 2017 Subaru WRX STI utilizes the same EJ257 power plant that we’ve witnessed in the STI models for the past 20 years. Text by Cameron Parsons // Photos by Cameron Parsons and Joe Singleton
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We’ll start with a reflash and intake upgrade in this Test and Tune. This car enters the D’Garage with the goal of retaining its streetability and practicality for daily driving while satisfying the power cravings of a seasoned drag racer. With his rich car history that included a C6 Corvette, a Dodge Viper and a 1,000 HP JZA80 Toyota Supra, the factory power figures on the WRX STI just won’t do. His once daily-driven Scion FR-S is leaving his garage to make room for the 2017 Subaru WRX STI with its four doors, five seats and 305 horsepower. DSPORT staff member Al Rhee, however, thinks that he has it figured out. It’s tough to have the best of both worlds in one vehicle, no matter how you build it. Please reach out to us if you would like more information on this vehicle or have any questions.N early every auto enthusiast can appreciate a car with the performance to shine on track, yet the utility and comfort to haul the kids and groceries home after work. Annual fluid/filter service just performed via Nissan service center. ORIGINAL Window sticker included, MSRP was over $91,000.00. Clearplex windshield protection OEM parts such as exhaust/intake/hood/trunk/front lip available. Autotecknic CF shift paddles Alcantara headliner/rear deck Audison Bit Ten/Genesis Amps/Morel Elate 3-way speaker system/8" Sundown subwoofers. West Durement Steering wheel/DCTS CF steering wheel panel. Hawk Performance brake pads Knight Racer rear lip Color rear view camera/CarKit AV bypass front camera kit. Carbon fiber front bumper nose/front fender vents/fender emblems/rear bumper extensions. Micheline Pilot Sport Tires (285/35-F/335/35-R) Carbon fiber GT hood/duckbill trunk/APR front lip/Rexpeed side skirts. 20" Volk TE37 Ultra Bronze wheels (OEM Wheels/Tires available). Umbrella Auto Design air cup suspension with KW sleeves. AAM V2 90mm catback exhaust with custom powder coated tips. AMS Catless downpipes/AAM Catted mid-pipe/GFB blow off valves. Gotboost 3" Intake with Outerwears/TSMPro 1050cc injectors. Twin turbocharged 3.8L V6 motor, 6 speed transmission. ONE OWNER car with 24,066 miles showing on the odometer.
Autoflex removable pearl paint job, OEM Pearl White underneath. 2012 Nissan GT-R Platinum Edition finished in Autoflex HyperShift pearl paint over black interior. Please call us at 42 or e-mail with any questions. 2012 Nissan GT-R Premium Edition DescriptionĬats Exotics is open to trades of all makes and models! We also offer a wide variety of lease and purchase options.
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