Applications: 2004-2009 Mazda 3 2.0L & 2.3L L4 F/I (ALL) - The K&N Typhoon Air Intake System Kit (K&N 69-6010TR) is a high-flow induction system designed specifically for the Mazda 3 application. Designed and tested for performance and power by the K&N engineering staff, these mandrel-bent aluminum tube kits look as good as they perform - with an estimated 5.2HP gain at 4500 RPM! This kit is manufactured using high quality aluminum tubing, and finished with a bright RED power-coating. Note: Per the K&N website listing ONLY the 2004 2.3L application is CARB exempt. Easy Installation Each kit is a truly a "bolt-on" on unit, and can easily be installed by the weekend mechanic using only simple hand tools. Complete installation instructions and dyno charts can be downloaded at the K&N product page. K&N Filter Element and Million Mile Warranty Each Typhoon Air Intake kit comes supplied with a legendary K&N filter element. K&N has been one of the leading pioneers in air filter element technology for many years, and produces one of the most respected filters available on the market today. Yes, there are many cheaper import elements available, but the product quality and filtering capabilities of the K&N units are well proven - don't take a chance with a cheap filter! As an added bonus, a One-Million Mile Warranty backs every K&N Filter Element! K&N believes so strongly in the quality of their product, that they can back up their claims with this rock-solid warranty. High Flow Filter The high-flow conical air filter that is supplied with each kit is designed to provide increased surface area and dust capturing capacity. This extra surface area provides even more airflow at lower restriction than a standard K&N O/E replacement filter that is limited to the size of the factory air box. The oversize air filter also captures more dirt increasing the service life before a cleaning is required (up to 100,000 miles). Unlike paper filters, you'll never need to replace your K&N unit, simply clean the filter with the K&N Filter Charger Cleaning Kit and you can reuse your filter almost indefinitely.