KAX Premium Engine Air Filter CA11257 for Dodge Charger/Challenger & Chrysler 300 — Oiled Cotton Gauze, 20K-Mile Life

KAX CA11257 is a premium replacement engine air filter engineered to fit select Dodge Charger, Dodge Challenger and Chrysler 300 models, offering extended life and high-efficiency particle filtration.

If you drive a compatible Dodge or Chrysler and want to preserve engine performance while reducing replacement frequency, this KAX premium air filter is built as a direct-fit upgrade from the factory element. It combines a high-performance oiled cotton gauze media and embossed filter paper layers to balance airflow with particle capture, designed for routine highway and city use. The filter dimensions and irregular shape match the original equipment housing so installation is straightforward.

How does this filter affect engine airflow and throttle response?

The KAX CA11257 is designed to maintain close-to-original airflow while improving filtration quality. Higher-quality media helps the engine draw clean air with minimal restriction, supporting steady throttle response and consistent power delivery across RPM ranges. Because it holds more dust before clogging, you’ll see fewer performance dips between service intervals.

• High-performance oiled cotton gauze media for balanced flow and capture
• Embossed paper layer adds crease stability and extra dust capacity
• Engineered to preserve factory airflow characteristics

How long will the KAX CA11257 last compared to a stock air filter?

This premium KAX element is built to last longer than a conventional disposable filter. KAX rates its CA11257 for up to about 20,000 miles under normal driving conditions, roughly twice the typical lifespan of many standard paper filters. That reduces how often you remove the housing and replace the element, lowering maintenance time and cost over each ownership year.

• Estimated service interval up to 20K miles depending on driving conditions
• Durable materials and manufacturing for extended life
• Single-piece boxed packaging for protected delivery

What protection and filtration efficiency does the KAX filter provide?

The CA11257 achieves very high particle-capture performance without compromising airflow. KAX reports filtration efficiency of 99.9% for the media construction, meaning it removes a large portion of harmful particulates before they can enter the intake. That cleaner intake air helps protect mass airflow sensors and intake components from early contamination.

• 99.9% filtration efficiency to trap fine particles
• Three-layer protection: oiled gauze plus embossed paper media
• Extra-large dust holding capacity for longer service life

Will this filter fit my vehicle and how easy is installation?

CA11257 is a direct replacement for specific Dodge Charger, Dodge Challenger and Chrysler 300 model years—no trimming or modification required. The irregular shape and listed length/width/height match the original equipment filter cavity for listed models. Installation is a simple swap: open the airbox, remove the old element, seat the new KAX filter, and close the housing.

• Fits Dodge Charger (2011–2023), Dodge Challenger (2011–2018, 3.6/5.7/6.4L 2019–2023), Chrysler 300 (2011–2023)
• Dimensions: 14.2" L × 9.1" W × 1.5" H; irregular shape for direct-fit
• Non-washable, single-use disposable element in box packaging

Who is this for? The KAX CA11257 is aimed at owners of the specified Dodge and Chrysler models who want a higher-performance, longer-lasting replacement air filter than stock paper elements. It suits drivers looking to reduce maintenance frequency while preserving factory-fit reliability and protecting intake components. If you value improved filtration efficiency, extended service intervals up to roughly 20,000 miles, and a direct-fit replacement, this KAX premium filter is a suitable upgrade for routine vehicle upkeep.