Subaru WRX ST 2015 is a five-passenger sedan with six-speed manual transmission that will perfect for an affordable but fast car.
Compare to the previous generation, this 2015 Subaru WRX ST has the same EJ257 with dual AVCS front engine with a little modification at the increased fuel economy ECU. It is a turbocharged and intercooled DOHC 16-valve flat-4 with aluminum block and heads, port fuel injection engine. The 2015 STI has 2.5-liter engine with 305 horsepower at 6000 rpm, only five more horses than the first STI in 2004. The torque also drops from 407Nm to 394Nm 290 lb-ft at 4000 rpm. But, the manufacturer says that the weaker area was the handling, so no need more power.
The Car’s Specifications
Still, the latest STI is stiffer in the body structure and the suspension. The steering rack changes from the 15:1 ratio in the previous models to a quicker 13:1 ratio. But, they keep the hydraulic power steering system. The steering is also quicker than the regular WRX’s; it’s only need 2.5 turn lock-to-lock versus 2.8. The 2015 STI is a five-passenger four-door sedan, with a six-speed manual. The displacement is 150 cu” with 2457 cc capacity, with the car’s dimensions: 104.3” wheelbase, 180.9” length, 70.7” width, and 58.1” height. The curb weight is 3450 lb with top speed at 150 mph.
The car’s headlamps are very bright and clear, and the cabin is more spacious due to a one-inch stretch in wheelbase. Moreover, the dashboard, the side sills, and the step-in height are lower. The A-pillars are also narrower and moves inward almost eight inches; and the door openings are wider. Although some may say that the rear vision is divided because of the tall wing. Though, the manufacturer says that the wing adds minimal drag and a bunch of down force. But, in Europe and Australia, STI is available with and without the wing.
The more plus aspect in WRX ST Subaru are, the interior surfaces are look richer, a fat D-shaped steering wheel, red-stitched faux-suede trim, and faux-carbon-fiber bits. In the premium models, they add satellite navigation system and also a color touch with screen for the audio controls. Also a color screen that shows the digital boost gauge, and torque distribution indicator at top of dashboard. Even though there are still have cheap-feeling plastics strewn in the cabin.
Not like the regular WRX, the Subaru WRX STI needs a fine level of clutch and throttle control to get away from a standing start. But, with short, rifle-shot throws shifter combined by clutch take-up it will be quick without being abrupt. Triple-cone synchronizers help shifts in first and second, and a double-cone synchronizer help the third. Specialist in medic will be amused by the center-console rocker switch labeled as “C.Diff.” For them, C. diff is Clostridium difficile, a bacterium that causes strong diarrhea. In the STI, C.Diff will make strong corner exits.
The default front and rear ends torque use limited-slip differentials with 41 percent front and 59 percent rear. Compared to the old model, the front stabilizer bar is 3 mm thicker. The spring rates are up 22 percent with the upfront lateral stiffness rise 14 percent. And, the rear lateral stiffness is up 38 percent, while front and rear roll stiffness is up 24 percent. The rear suspension is 1 mm bigger stab bar with 3 mm of additional toe-in. The overall torsional rigidity is up 40 percent.
Subaru WRX ST, Plus Minus Aspects
Actually, the Subaru STI isn’t for the drag strip. With 3:10.5 Lightning Lap time, it’s even outrun by old 2007 BMW 335i or Chevrolet Camaro SS. Still, when you’re on a bad road and want to be fast the six-speed manual is the perfect. There’s an emergency brake with a handle that will works well. With Laguna Seca mirror-smooth, the STI is comfortable to speed up. With $35,290 as a base price, $38,190 for Launch Edition, and $39,290 for Limited, Subaru have real competition on price.
With 0.98 g lateral grip, the ride is still quite fierce because the gear ratios and the tire sizes are unchanged. There will still be two gearshifts to 60 mph in 5.3 seconds, same as a 2010 STI. Also, with a brutal clutch drop from redline, the cheaper 268 horsepower WRX with its $27,090 base price, will perform the same trick in 4.8 seconds with just one shift. But, you can do this trick about the suspension problems, tap the Brembos. The brake pedal with system modulation and also throttle tip-in are precision. This car is an improvement of its predecessor.
STI Subaru can’t be driven much beyond 8/10ths on the road. It is so fast and thrill. In some markets, the sound tube device has been fitted to the air intake system to channel certain induction and turbo frequencies into the cabin. This 2015 STI is also good for 0-100km/h in 4.9-seconds; the induction noise isn’t as feisty as the WRX. Maybe because of the turbocharger pressure are different–15.9psi in the WRX and 14.7psi in the larger 2.5-litre WRX STI.
Cars like the Volkswagen Golf GTI, Ford Focus ST and Renault Megane RS are available and offer similar performance characteristics to the WRX STI. If can also compare between the WRX and WRX STI. WRX allows you to enjoy the drive without sacrifice your relax feeling in traffic. It’s also sportier but cheaper. WRX now comes with an automatic continuously variable transmission (CVT), while STI use a manual transmission.
The Subaru WRX STI needs a lot of effort on the road, like when you hit a stony or sandy road. A sophisticated all-wheel-drive system works well when the grip is minimal. You can violently attack the throttle in any gear through any corner and it will just stick to the road. The manliness of the WRX STI will fade after the second or third time you’re stuck in traffic. But, the choice is still yours. This 015 Subaru is still a perfect choice for fast drive on the highway. Overall choosing a car is about preference, and how much budget you have.