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Easy 2015-2016 Subaru WRX STi Performance Upgrade from K&N High-Flow Air Filters
Easy 2015-2016 Subaru WRX STi Performance Upgrade from K&N High-Flow Air Filters
24 Jul 2015
An application specific black powder coated air filter heat shield is included in the K&N intake for the 2015-2016 WRX STi
The K&N RU-4870 reusable air filter is fitted to the inlet of a wrinkle-red powder coated mandrel-bent aluminum short ram air intake tube for 2015-2016 Subaru WRX STi models
Subaru gave its flagship model, the WRX STi, a redesign for the 2015 model year. However, Subaru chose to carry over the EJ257 intercooled and turbocharged 2.5L H4 boxer engine. Some critics are disappointed that the base model WRX would receive the cutting edge 2.0L FA20DIT engine, while the 2015 WRX STi has the same engine from the 2014 model year. For those critics Masuo Takatsu, program manager for both the base 2015 WRX and WRX STi, had this to say “I felt the STI’s weaker area was the handling side. If we didn’t have the chassis, why add more power to overwhelm it? Also, this EJ engine has proved itself in competition. It’s an engine we confidently bring to the track. The new FA-series in the WRX has not been proven in motorsports. Plus, we knew the aftermarket could supply more power to those STi owners who demanded it.”
Subaru gave its flagship model, the WRX STi, a redesign for the 2015 model year; however, Subaru chose to carry over the EJ257 intercooled and turbocharged 2.5L H4 boxer engine
The K&N performance air intake for the 2015-2016 Subaru WRX STi positions the reusable K&N high-flow air filter in a location near the front of the car to help pull fresh air into the engine
Masuo Takatsu knew what he was talking about. He predicted the aftermarket would step in and K&N® has done so with an aesthetically pleasing and highly functional performance air intake system for the 2015 and 2016 Subaru WRX STi 2.5L H4. K&N performance air intake system 69-8007TWR produced an amazing estimated 34.32 horsepower increase at the wheels of an otherwise stock 2015 Subaru WRX STi. Dyno testing on the K&N 2015-2016 Subaru WRX STi air intake was performed to back these substantial increased horsepower claims. K&N dyno testing shows that performance air intake 69-8007TWR produced an estimated gain of 34.32 horsepower at 5,400 RPM and an estimated increase of 33.58 lb-ft of torque at a low 3,511 RPM. These numbers represent peak estimated power gains. Significant power gains were witnessed across the entire RPM range which aids in improving the driving experience even during daily driving.
The K&N air intake for the 2015-2016 Subaru WRX STi positions the reusable K&N high-flow air filter in a location near the front of the car to help pull fresh air into the engine for superior airflow and superior performance. Bringing in cooler outside air can result in more power. The K&N RU-4870 over-sized reusable air filter is fitted to the inlet of a mandrel-bent aluminum short ram air intake tube. This K&N aluminum intake tube is protected by a wrinkle-red powder coat finish chosen in order to match original equipment parts visible under the hood of 2015-2016 Subaru WRX STi models. An application specific black powder coated air filter heat shield is included in the K&N air intake system for the 2015-2016 WRX STi which helps seal the air filter from engine heat under the hood.
K&N performance air intake system, number 69-8007TWR, produced an amazing estimated 34.32 horsepower and 33.58 lb-ft of torque on a stock 2015 Subaru WRX STi 2.5L H4 turbo
The K&N 2015-2016 Subaru WRX STi aluminum intake tube is protected by a wrinkle-red powder coat finish to match original equipment parts visible under the hood
The K&N 69-8007TWR performance air intake system is an easy to install performance upgrade for 2015-2016 Subaru WRX STi 2.5L H4 models. By following K&N’s simple step-by-step instructions, owners of 2015-2016 STi models can experience more power and better acceleration in about 90 minutes or less using basic hand tools. The K&N 2015-2016 WRX STi 2.5L turbo air intake system 69-8007TWR maintains all necessary factory connections and does not require any additional modifications to experience a boost in performance. K&N backs its air filters and air intake systems with a 10-year/million mile limited warranty so Subaru WRX STi owners can rest assured knowing that their air intake upgrade will provide improved performance for years to come.
