K&N Drop-In Air Filter Honda Civic Si 2017-2020 | 33-5044

Product Fitment: 

2017-2020 Honda Civic Si

The K&N 33-5044 replacement drop-in air filter delivers superior airflow and engine protection for Honda Civic 1.5L turbocharged engines. This washable, reusable performance air filter increases horsepower while providing excellent filtration, making it the perfect upgrade for Civic enthusiasts seeking improved throttle response and engine efficiency.

Key Features & Benefits

• High-Flow Cotton Media - Allows up to 50% more airflow than disposable paper filters for increased horsepower and acceleration
• Washable & Reusable - Lasts up to 50,000 miles between cleanings, saving money over disposable filters
• Million Mile Limited Warranty - Backed by K&N's industry-leading warranty for peace of mind
• CARB Compliant - Legal for use in all 50 states including California emissions regulations
• OEM Drop-In Replacement - Installs in minutes using existing factory airbox with no modifications required
• Superior Protection - Four layers of cotton media trap harmful contaminants while maintaining optimal airflow

What's Included

• K&N 33-5044 High-Performance Air Filter
• Installation Instructions

Specifications

Installation

Simple drop-in installation requires no tools or modifications. Remove factory airbox cover, replace OEM paper filter with K&N filter, and reinstall cover. Installation takes less than 15 minutes and is completely reversible. Professional installation not required.