2012 Subaru Impreza Wrx Sti Sedan 4-door 2.5l on 2040-cars

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Subaru WRX and STI meet at the dyno with interesting results

Road and Track recently put the 2015 Subaru WRX and the 2015 WRX STI through a battery of dyno tests to find out not only how much difference there is between their two engines, but what kind of differences there are. The WRX gets the company's new FA20 2.0-liter boxer four-cylinder engine with features like a twin-scroll turbocharger, direct injection and variable valve timing on its two cams. The WRX STI stands pat with the older EJ-Series motor, meaning a 2.5-liter boxer four-cylinder with port fuel injection and carryover turbo lag. Subaru pegs the $26,295 WRX at 268 horsepower, 258 pound-feet of torque and an "extremely conservative" 0-60 mile per hour time of 5.4 seconds. The $34,495 STI clocks in at 305 hp and 290 lb-ft with a 0-60 mph time of 5.1 seconds. Ok, fight.
R&T's dyno runs sussed power numbers at the wheel of 223 hp and 245 lb-ft for the WRX, 247 hp and 243 lb-ft for the STI, then went on to demonstrate in numbers what everyone knew: that the WRX consistently puts out more of its torque earlier than the STI and achieves full boost almost three seconds quicker. On the other hand, on the track, the STI was also shown to have a conservative official 0-60 mph time, stopping the timer at 4.8 seconds compared to the WRX's 5.2 seconds.
The mag says it has comprehensive results coming from its "complete battery of tests," but for now, you can scrutinize their dyno charts and let the battle continue about which one you'd rather put your money down for.

2015 Subaru WRX STI goes for the gold [w/video]

If the all-new 2015 Subaru WRX has taken a good thing and made it great, then this should be, well, greater. Meet the range-topping WRX STI, packing more power, a decidedly more aggressive suspension tune, beefier looks, a giant wing and (woo!) gold wheels.
Those spiffy BBS wheels and WRC rally-ready matching WR Blue paint won't necessarily be around forever, though - Subaru is offering this package (along with unique interior trim) on the STI Launch Edition, limited to just 1,000 units. And cool as it may look, there's far more to love about the new STI package.
Power comes from a 2.5-liter turbocharged boxer four-cylinder engine, sending 305 horsepower and 290 pound-feet of torque to all four wheels via a six-speed manual transmission. (Launch Edition models even get a short-throw shift kit, which will likely be available as a dealer-installed accessory thereafter). Unlike the standard WRX, a do-it-yourself 'box will be the only transmission available. Subaru is employing its new - *ahem* - Multi-Mode Driver Controlled Center Differential version of the Symmetrical All-Wheel Drive, which, in addition to a standard 41/59 torque split, uses things like torque vectoring, and, when put in manual mode, allows the driver to select one of six center differential locking levels. In other words, the STI should be incredibly sharp on the road - sharper than ever before.

Ward's reveals annual 10 Best Engines list for 2013

Ward's Auto has released its annual 10 Best Engines award winners. The 2013 list covers the full width and breadth of the internal combustion spectrum, from a spate of efficient four-cylinders to the most powerful production V8 on the planet. As always, the entries must be available in a production vehicle in the first quarter of 2013 with an MSRP of less than $55,000. The supercharged 3.0-liter V6 from the Audi S5 held on for the fourth consecutive year, and BMW earned two spots on the list with its turbo 2.0-liter four-cylinder and turbo 3.0-liter inline-six.
Ford pulled in two awards for its 2.0-liter EcoBoost four-cylinder and and the supercharged 5.8-liter V8 from the Shelby GT500. Honda matched BMW and Ford with two wins of its own. Wards awarded the 2.4-liter four-cylinder from the Honda Accord Sport as well as the 3.5-liter V6 from the Honda Accord. Chrysler, General Motors and Subaru each garnered a spot on the list as well for the 3.6-liter V6 in the Ram 1500, the turbo 2.0-liter four-cylinder in the Cadillac ATS and the 2.0-liter four-cylinder the Subaru BRZ, respectively. You can read the full press release below for more information.