Injen 15-21 Subaru WRX 2.0L 4 Cyl. Polished Cold Air Intake

Injen 15-21 Subaru WRX 2.0L 4 Cyl. Polished Cold Air Intake

Marsoni

M251S

$251.43

Get it in 3 business days with 1 day shipping. Friday, May 29

Injen 15-21 Subaru WRX 2.0L 4 Cyl. Polished Cold Air IntakeSKU: SP1209P UPC: 843116029234 Injen 15 21 Subaru WRX 2. 0L 4 Cyl. Polished Cold Air Intake This Injen SP1209P polished performance air intake system replaces the restrictive factory airbox on 2015 2021 Subaru WRX models with a high flow design for better throttle response and power delivery. It fits Base, Limited, and Premium submodels equipped with the 2. 0L turbocharged engine. Dyno testing confirms gains of 11 HP at 5500 RPM and 12 lb ft torque at

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Installed on a 2.0 liter Subaru Impreza. I drive up/down the I5 in california 3-4 times a year. For those that don't know there is about a 200 mile flat stretch where everyone runs at 75-85mph. With various filters (FRAM, BOSCH, Subaru OEM), I would consistently get 29.8 mpg. Once I installed the K&N, I could feel the car pulling with a bit more power, but I noticed that I was getting about 27.5 mpg. Totally worth it as the impreza is a little under powered and I don't drive many miles (6k/year) but if you are putting a lot of miles on your car, you may want to have more mpg.

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Reviewed in the United States on May 24, 2026

Verified Purchase

GregUPerkio

Fort Morgan, US

★★★★★ 5

fits my 2013 chevy suburban 5.3 and appears to be high quality

Size: (Pack of 1)

fits my 2013 suburban perfectly. looks to be a well constructed unit.

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Reviewed in the United States on March 29, 2026

Verified Purchase

Gahvno

Pawtucket, US

★★★★★ 5

Very good quality comparable to OEM at a much more reasonable price point.

Size: (Pack of 1)

Last December we bought our first new car in 21 years and the first thing I did is stock up on cabin and engine air filters. I've got nothing against dealership OEM parts and pieces but what I do have an issue with is the prices. Luckily, we all have a bit of control over access to OEM quality parts and pieces at significantly more reasonable prices via Amazon. This filter and it's matching cabin filter are excellent in value and take less than 5 minutes to replace. Compare that to paying the hourly rate at your dealer plus the dealership retail price and you'll do what I did and stock up on these two filters. Definitely recommended.

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Reviewed in the United States on September 25, 2025