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The 2019 Subaru STI S209 has an intercooler sprayer, here's what it looks like when you activate it

The 2019 Subaru STI S209 gets a lot of features that distinguish it from your average WRX STI including wide body work, a giant wing, additional chassis braces and an extra 31 horsepower. It also brings back a performance gizmo that hasn't been featured in a U.S. market Subaru since 2007: the intercooler sprayer. As the name implies, it sprays cool water onto the air-to-air intercooler when pressing a button. In the case of the S209, that button is one of the paddles on the back of the steering wheel. That triggers the water nozzles hidden in the hood scoop to spray water. You can see what happens in the video below. Note that when the car is in motion, air would carry the spray farther back covering more of the intercooler. Now why would you want an intercooler sprayer? Well, the S209, like all WRX and STI models, uses an air-to-air intercooler to cool off hot air coming from the turbocharger on its way to the intake manifold. The cooler your air, the denser it is, meaning more oxygen to combine with fuel to turn into more power. The effectiveness of the intercooler depends partly on the temperature of the outside air flowing over the intercooler. If it's really hot out, it's not as effective. So spraying water onto the intercooler can counter this to ensure that the car is making maximum horsepower even in toasty conditions. This also means that although this may feel like some special secret performance-boosting weapon, it's really only effective in specific circumstances, and will just get you back to normal power, rather than make the car noticeably faster on the street. Long track days in the summer and after waiting in line at the drag strip or autocross are the kinds of situations where you could see power diminish due to hot air and a lack of moving air. Normal driving won't necessitate its use nor will driving in cool temperatures. In fact, the S209's owner's manual specifically says not to use the sprayer in temperatures below 41 degrees Fahrenheit because of the risk of frozen water in the tank. That brings us to another aspect of the intercooler sprayer: maintenance. In fairness, there isn't much to maintain, but if you want to use the system, you do need to keep the tank filled. It's located in the trunk where the spare tire would normally be. Inside of course is a water pump that connects to hoses that run water to the front. There is a warning light that will illuminate on the instrument panel if it runs low.

2017 Subaru Forester has new face, better EyeSight, torque vectoring

The Forester was Subaru's best-selling vehicle in the US last year, and holds that title so far in 2016. With stiff competition in the crossover segment, though, Subaru isn't resting on that success. A refresh to the Forester for the 2017 model year adds more tech, and updated face, and a quieter interior. Plus you can now get torque vectoring on the 2.0-liter turbo, just like in the Impreza WRX and STI. The updated Forester arrives at dealerships in July. Most significant among the updates is a an upgrade to Subaru's Eyesight safety system. Eyesight uses two cameras in the windshield to read the road ahead and provide emergency braking and adaptive cruise control. With the new model year the system now uses color cameras with a winder and longer field of view. The tech suite includes Lane Keep Assist, and higher trims benefit from additional improvements like High Beam Assist, Steering Responsive Headlights, and Reverse Automatic Braking, which can automatically stop the CUV if it detects an obstruction behind the car. The 2017 Forester's design tweaks are minor but attractive. The new grille features horizontal bars, and the updated front fascia for naturally aspirated models has a larger body-color section around the air dam. The headlights feature C-shaped LED running lights, too. Riding in the Forester should be quieter thanks to thicker door glass, new seals, additional under-floor insulation, and an acoustic glass windshield. There's also a redesigned steering wheel, and it's even heated on the Touring trim. Customers can still choose between a 170-horsepower naturally aspirated 2.5-liter four cylinder or a 250-horsepower 2.0-liter turbo four. Subaru worked some engineering magic on the 2.5 and upped the fuel economy 26 miles per gallon city, 32 mpg highway, and 28 mpg combined – gains of 2 mpg city and 1 mpg combined. Subaru's venerable all-wheel drive layout also now includes Active Torque Vectoring on the Forester 2.0XT Touring with EyeSight for even sharper handling. Related Video: 2017 SUBARU FORESTER OFFERS ADVANCED SAFETY FEATURES AND GREATER COMFORT AND PERFORMANCE April 14, 2016 New Driver Assist Technology Improved MPG Upgraded Comfort and Style Turbo Model Now Features Torque Vectoring Cherry Hill, N.J. - Subaru of America, Inc. today announced a comprehensive update to the 2017 Forester including revised styling, new driver assist technology, more interior comfort, enhanced driving performance, and better fuel economy.

Subaru Viziv Performance STI Concept has us dreaming of a future WRX STI

Subaru has revealed the Viziv Performance STI Concept at the Tokyo Auto Salon, and it's pretty much what you would expect. It's very closely related to the Viziv Performance Concept from the Tokyo Auto Show last year, but it's been given a bevy of flashy STI parts to make it aggressive. Up front, a deep lip spoiler complements a redesigned front bumper that does away with the two outboard air intakes and opens up the center one. According to a Subaru designer, it improves the cooling and aerodynamics. Having the blocked-off intakes on each side with STI logos is also a nice throwback to old Impreza STI models that often had blank panels with the logo over the foglight openings. Around the side are side skirts, and at the back are small extensions to the same diffuser from the earlier Viziv concept. And of course, there's a massive wing at the back. What's interesting is how much of the normal Viziv remains under the STI logos, decals and wings. The fenders look nearly untouched, and the hood scoop is the same size and shape as the standard concept. Even the exhaust, taillights and headlights are all the same. Then again, between the production WRX and WRX STI, the only real visible differences are the rear wing, wheels and front spoiler. And, if the Viziv Performance concepts preview future WRX and STI models, following that model makes sense. Of course the big differences between WRX and STI models are under the skin. Unfortunately, Subaru doesn't reveal a thing about what hypothetical powertrain is under this STI. Maybe we shouldn't be so surprised though, since the company didn't say anything about the regular one either. Only the use of a flat-four and all-wheel drive are certain. For that matter, even the styling isn't truly certain. While we can hope that the next WRX and WRX STI have the muscular look of these concepts, we have reason to be skeptical. But instead of getting cynical and sad, let's just enjoy this for what it is: a cool STI concept. Related Video: