KAX Engine & Cabin Air Filter Kit for Subaru Forester 2009–2018 — CA9997CF10930, 2-piece set with activated charcoal cabin filter

KAX CA9997CF10930 is a two-piece air filter kit that replaces both the engine air filter and the cabin air filter for Subaru Forester models 2009–2018, restoring engine airflow and improving in-cabin air quality.

If you own a Subaru Forester (2009–2018), keeping both engine breathing and cabin ventilation in top condition matters for performance, comfort, and long-term maintenance. This KAX kit bundles one engine air filter and one cabin air filter in a single purchase, using multi-layer filter media and coconut shell–activated charcoal in the cabin element to reduce odors while protecting the engine from dust and debris. The set is designed for quick installation so routine replacement is straightforward and can be done together to simplify service intervals.

How will this kit affect daily driving and engine performance?

Replacing a clogged engine air filter restores proper airflow to the intake, which helps maintain throttle response, fuel efficiency, and engine longevity. The KAX engine filter uses premium filtration media with layered construction to trap fine particles while minimizing flow restriction.

• Engine filter designed for optimum airflow and particle capture
• Helps maintain factory engine performance and responsiveness
• Easy swap-in fitment for Subaru Forester 2009–2018

What does the cabin filter do and why is charcoal included?

The cabin filter keeps dust, pollen, and road particles out of the passenger compartment and the activated charcoal layer helps neutralize common odors from traffic and outside air. KAX uses coconut shell–activated charcoal for odor control without adding chemical fragrances.

• Multi-layer media captures pollen, dust, and particulates
• Coconut shell-activated charcoal reduces unpleasant odors
• Improves comfort for passengers and reduces HVAC contaminants

How simple is installation and how often should I replace them?

Both filters are engineered for a straightforward replacement that most owners can complete in about five minutes per filter using basic tools. KAX recommends changing both filters together to simplify maintenance and ensure balanced protection for engine and cabin systems.

• Estimated install time: roughly 5 minutes per filter
• Recommended replacement interval: every 12 months or 12,000 miles
• Buying the set saves time and prevents mismatched service schedules

Will these filters fit my specific Subaru model and trim?

This KAX kit is specified for a range of Subaru vehicles including the Forester 2009–2018 and compatible Subaru Crosstrek, Impreza, WRX and XV Crosstrek gasoline model years listed. Verify fitment against your vehicle year and engine code before purchase to ensure correct compatibility.

• Primary fitment: Subaru Forester 2009–2018
• Also covers select Crosstrek, Impreza, WRX, WRX STI, and XV Crosstrek gas models listed by KAX
• Check your OEM part numbers or vehicle manual when in doubt

Who is this for: This combo kit is aimed at Forester owners and independent DIYers who prefer to maintain both engine and cabin filters at the same time for convenience and cost savings. It's also a practical choice for routine shop service where a matched replacement helps keep vehicle airflow systems functioning as intended. Choose the KAX CA9997CF10930 kit if you want a single-purchase, hassle-minimizing solution with activated charcoal cabin odor control and multi-layer engine filtration tailored to Subaru Forester models from 2009 to 2018.