Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 9 - Jul 14
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Description
aFe MagnumFLOW Air Filters OER PDS A/F PDS Subaru Impreza WRX STI 08-11 H4-2.5LExperience enhanced engine performance with the aFe MagnumFLOW P5R Drop In Air Filter designed for the Subaru Impreza WRX STI 2008 to 2011 models featuring the H4 2. 5L engine. This high quality air filter offers significantly improved airflow compared to your OEM filter, enabling better throttle response and more horsepower. Crafted with precision to fit perfectly into the stock airbox, installation is quick and hassle free, making it the ideal
Experience enhanced engine performance with the aFe MagnumFLOW P5R Drop In Air Filter designed for the Subaru Impreza WRX STI 2008 to 2011 models featuring the H4 2.5L engine.This high-quality air filter offers significantly improved airflow compared to your OEM filter, enabling better throttle response and more horsepower.
Crafted with precision to fit perfectly into the stock airbox, installation is quick and hassle-free, making it the ideal upgrade for those seeking performance gains without modifying their intake system.
The durable construction ensures long-lasting use and optimal filtration efficiency, keeping harmful contaminants out while allowing your engine to breathe freely.
Trust the aFe brand for reliable air filtration solutions that are enthusiast approved and engineered to meet the demands of spirited driving and motorsport applications.
Upgrade your Subaru Impreza WRX STI with the aFe MagnumFLOW P5R Drop In Air Filter and enjoy enhanced acceleration, better fuel economy, and a satisfying growl under the hood.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 1140 reviews
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Product Reviews
★★★★★ 4
Check the gap!
Plugs work great. I will say for those reviews saying they got a dud. CHECK THE GAP!!! Both plugs were not at 0.030 as advertised. I gapped the plug and it worked perfectly.
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Reviewed in the United States on April 7, 2026
★★★★★ 5
Great
Needed one for my mower, got a box of 2. Works great!
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Reviewed in the United States on May 20, 2026
★★★★★ 3
Didn’t work well in my B&S engine
Worked for 15 minutes. Repeatedly stalled. Replaced with name brand and ran like new.
UPDATE. Seller immediately offered refund well outside refund window of opportunity. That’s nice to have someone stand behind their product
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Reviewed in the United States on May 9, 2026
★★★★★ 5
Lawnmower sparkplug
Worked great, easy to install, fast replacement. And 2 for the price of one.
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Reviewed in the United States on April 8, 2026
★★★★★ 5
Perfect replacement part
Perfect replacement
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Reviewed in the United States on April 29, 2026