The AWE Tuning S-FLO Filter is a drop in, high flow direct replacement for the restrictive OE paper filter. How it works The AWE Tuning S-FLO Filter utilizes a reusable oiled cotton filter due to its superior design, allowing for a higher flow rate, and increased durability over the OEM paper unit that it replaces. Unlike the stock filter, the AWE Tuning S-FLO Filter is washable and reusable meaning that with proper care, the AWE Tuning S-FLO Filter will provide years of improved breathing. Our S-FLO Filter has been tested against competing aftermarket drop in filters with favorable results. Highlights: Tested and verified by an independent lab to flow 34% more than stock Peak gains: +4 hp and +5 ft lb at the crank on 3.0T engine Designed in house and manufactured by an OEM tier 1 supplier to AWE Tuning’s specifications, this is the largest possible filter compatible with the 3.0T factory airbox. Featuring a large face cylinder shape our filter has more surface area than its cone shaped equivalent. Keep it clean Dirty filters are no good. That's why we went on a mission to find something good to keep the good times flowing. The Green High Performance Air Filter Cleaner and Re-Oiling Kit is an efficient and effective cleaning system to extend the life of your filter. The oil within the kit is 100% synthetic, which makes it light enough to not affect any sensors in your 3.0T, but heavy enough to protect the filter from road debris. Recommended cleaning intervals for the AWE Tuning S-FLO Filter is 10k miles or once a year, whichever comes first.