Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake - Polished

Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake - Polished

Marsoni

M251S

$184.55

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

Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake - PolishedInjen Technology has done it once again with this new short ram air intake for the 2018 2021 Subaru WRX STI Equipped with the H4 2. 5L Turbo Engine. The Injen Technology SP1208 performance air intake system is the result of countless hours invested in research and development to provide a proven intake system designed to add power and performance to your STI. The Injen Technology SP1208 intake system is a direct replacement for that restrictive

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We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
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I have a 2020 Honda Civic Sport, and these filters fit perfectly. I was hesitant in purchasing because it said that its a frequent returned due to compability. Installation was a breeze after watching a quick YouTube tutorial, although it does come with instructions/manual. They look solid and durable. They came individually wrapped. I’m hoping they help with the odor and fogging issues caused by the old filters. Honda service wanted to charge me $63 for the cabin filter alone, so this was definitely a much better deal. I would purchase again in the future. The item ID that I purchase is CF11182&CA12051.

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Reviewed in the United States on May 29, 2026

Verified Purchase

AJ8

Charlottesville, US

★★★★★ 5

Good filters

Size: CF11182&17220-61A-A00

Fit well and easy to install!

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on May 24, 2026

Verified Purchase