We use cookies to make your experience better. To comply with the new e-Privacy directive, we need to ask for your consent to set the cookies. Learn more.
2014-2021 SUBARU WRX STI 2.5L
SUBARU WRX PARTS AND ACCESSORIES FROM K&N
Pedal down, pulse up. K&N offers a wide variety of upgrade options for your WRX, including intakes (gain up to 34 horsepower after installing the 69-8007TWR*), air filters, oil filters, wiper blades, and more, all custom-designed to fit your Subaru. Use the vehicle search to confirm the part numbers that fit your specific model year.
COLD AIR INTAKE KITS FOR 2014-2021 WRX STI
Cold Air Intake - High-flow, Aluminum Tube - SUBARU WRX STI H4-2.5L
$349.99
Regular Price
$299.99
Special Price
$50 OFF FOR A LIMITED TIME
Cold Air Intake - High-flow, Aluminum Tube - SUBARU WRX-STI H4-2.5L
$399.99
Regular Price
$349.99
Special Price
$50 OFF FOR A LIMITED TIME
Cold Air Intake - High-flow, Aluminum Tube - SUBARU IMPREZA WRX-STI H4-2.5L
$399.99
Regular Price
$349.99
Special Price
$50 OFF FOR A LIMITED TIME
Out of stock
FEATURED PARTS & UPGRADES FOR WRX STI 2.5L
K&N CUSTOMER REVIEWS
Great intake! Great power, great sound, and fit perfectly. Really happy about not having to tune car with it!
- 69-8005TWR Cold Air Intake
Have used K&N air filters in all my cars and trucks for over 50 years. This was as easy to install as a stock filter. Fast service.
- 33-2304 Air Filter
While everyone else seems to be backordered, I realized K&N is the pioneer of the pleated filters. It works great in my new WRX STI. I know it’s flowing better plus I can hear more of the turbo swoosh!
- 33-5092 Air Filter
SUBARU WRX STI TOP SEARCHES
+34 HORSEPOWER IN LESS THAN AN HOUR FOR YOUR WRX
Check out the benefits of a K&N cold air intake kit. Step-by-step instructions are included in every kit, and you only need common hand tools to complete the process.
*Estimated HP gain after installing the 69-8007TWR. Horsepower gains vary among products and applications, but each K&N performance air intake system is designed to increase airflow efficiency for specific vehicles and their engines. Each kit undergoes significant testing to help ensure that the filter and intake tube are engineered to deliver large increases in airflow and horsepower. Please visit individual product pages to view horsepower estimates for your specific vehicle.
Check out the features and benefits that make a K&N High-Flow Air Filter the performance-minded choice for your WRX.
HOW TO CLEAN YOUR INTAKE FILTER
If an oiled cotton filter is included in your Subaru intake kit, it is designed to go up to 100,000 miles before cleaning (under normal highway driving conditions). When it does need to be serviced, you can complete the process in around 15 minutes.
STEP 1 - APPLY K&N® POWER KLEEN®
STEP 2 - RINSE YOUR FILTER WITH LOW PRESSURE WATER
STEP 3 - ALLOW YOUR FILTER TO DRY NATURALLY
STEP 4 - APPLY K&N® FILTER OIL
Visit the cleaning page for detailed instructions.
SUBARU WRX ARTICLES
Easy 2015-2016 Subaru WRX STi Performance Upgrade from K&N High-Flow Air Filters
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...
How Does a K&N Air Intake System Improve Performance?
Is a K&N performance air intake system better than a stock system? K&N performance air intake systems are designed to create a more aerodynamic path for airflow to reach the engine by removing the stock intake tubing that can create excess...
Which K&N Oil Filter Should You Choose for Your Next Oil Change?
How to choose the best K&N Wrench-Off®, canister, or cartridge oil filter for your next service K&N offers performance oil filters designed for automotive, motorcycle, marine, and heavy duty applications. Read on to learn what sets K&N...
