For years now, Subaru homeowners have been complaining about how the WRX STI hasn’t gotten a big energy bump since 2004, nonetheless placing out 300 horsepower all these years later, whereas automobiles just like the Ford Focus RS, Civic Sort R, and VW Golf R have left them of their mud.
That ends now with the introduction of the Subaru STI S209, the first-ever S-line STI product produced solely for the U.S. market. As an S-line product, the STI S209 will get upgrades in energy, dealing with, aerodynamics and driver engagement.
Designed with a concentrate on high-performance driving, the STI S209 attracts inspiration and tech switch from the WRX STI Nürburgring Problem racecar. The S209 wears an expanded wide-body exterior remedy, which extends the car’s total width to 72.4 inches (1.7 inches wider than a typical WRX STI). The bulging fenders accommodate wider entrance/rear tracks (+0.6 in entrance/rear) and 265/35 Dunlop SP Sport Maxx GT600A summer season tires wrapped round light-weight 19 x 9-inch solid BBS alloy wheels.
The all-new tires, developed solely for the S209 by Dunlop, are a big contributor to the automotive’s tenacious most lateral grip of over 1.0 g. Vents on the entrance fenders present further engine cooling, whereas vents on the rear fenders rectify air turbulence to scale back drag. Brembo brakes, with cross-drilled metal rotors and 6-piston monoblock entrance calipers and 2-piston monoblock rear calipers, present stout stopping power, thanks partly to upgraded high-friction pads that ship improved fade-resistance.
Beneath the S209’s broader physique are specifically developed Bilstein dampers, stiffened coil springs, a 20mm rear stabilizer bar and pillow-type bushings for the entrance/rear lateral hyperlinks. The S209 incorporates reinforcements to the entrance crossmember and rear subframes and a versatile front-strut tower bar and versatile entrance/rear draw stiffeners. The versatile tower bar is cut up and joined with a pillow ball joint within the middle to be longitudinally cellular whereas serving to laterally stiffen the physique of the automotive. The result’s optimum tire grip throughout lateral moments mixed with compliant journey throughout longitudinal moments. In the meantime, the draw stiffeners apply pressure between the physique and cross member to optimize chassis flex, bettering stability when cornering and delivering higher journey, dealing with and steering response.
Different Nürburgring racecar tech that trickles right down to the STI S209 embody entrance, rear and aspect below spoilers, entrance bumper canards, and carbon-fiber roof panel and rear wing.
In terms of energy, the S209 encompasses a completely reworked model of the EJ25 2.5-liter turbocharged BOXER engine that places out an estimated 341 horsepower, thanks partly to a bigger turbine and compressor, in addition to a most enhance strain of 18.0 psi. The engine will get solid pistons and connecting rods which can be each lighter and stronger. Midrange torque additionally will get a notable bump, up 10% at 3,600 rpm, delivering larger nook exit speeds when driving on monitor.
Lastly, to feed extra air to the EJ25, the S209 makes use of a high-flow consumption system that includes a brand new consumption duct, induction field with conical air filter, silicone turbo inlet duct and, a nod from the 2004-07 WRX STI, an intercooler water spray system that lowers intercooler temperature through operated by hand steering-wheel paddles. Extra air calls for extra gasoline, so the S209 receives a brand new high-flow gasoline pump, bigger gasoline injectors and an STI-tuned engine management module. Excessive-performance mufflers ship 17% much less airflow resistance whereas bigger hand-polished stainless-steel exhaust suggestions (101mm in diameter) ship aggressive look and sound.
Just like the 2018 WRX STI Sort RA, the STI S209 is a limited-edition mannequin, with solely 200 automobiles to be constructed, solely for america. The S209 will likely be obtainable in both WR Blue Pearl with grey BBW wheels or Crystal White Pearl with gold BBS wheels.
Pricing hasn’t been introduced but, however count on a worth on par with (if no more than) the STI Sort RA. We’ll know extra nearer to the on-sale date in late 2019.