Universal Round Pro 5R Air Filter with Expanded Metal (18-11406) by aFe®, 14 OD x 12 ID x 5 H. This air filter is designed to provide maximum performance with a high level of protection. It fits into the stock filter housing, but flows better and lasts longer. It features extra-deep pleats and special pleat geometry to maximize airflow, advanced filtering media for high filtration efficiency, and expanded metal for added rigidity and strength.
- Maximum airflow with superior air filtration
- Improves performance
- Rounded pleats for better airflow
- 30% deeper pleats than comparable aftermarket filters
- Polyurethane construction withstands extreme engine temperatures
- Washable and reusable
- Extended service intervals
- Backed by a limited 1-year warranty
- Proudly made in the USA
The Pro 5R filter was designed to provide the maximum airflow possible, to enable your engine to make the most horsepower and torque. But aFe didn't achieve this by ignoring engine protection. The Pro 5R outperforms most other cotton gauze air filters with a 98.6% efficiency rating. The increased airflow and high filtration capability are the result of the Pro 5R's construction. It's made of 5 layers of progressively finer medical-grade cotton gauze.
Competitors use constant size mesh gauze in their filters, which creates voids/openings that can allow dirt to pass through. As the progressively finer layers of gauze are stacked in the Pro 5R, the randomness of the openings increase, minimizing spaces with no filter media. Dust accumulates on multiple layers, increasing overall dust holding capacity and filtration efficiency.
The Pro 5R filter features pleats that are evenly spaced for greater dust holding capacity and tips that are rounded for better airflow. They're also 30% deeper than comparable aftermarket air filters for longer service intervals and greater dust holding capacity. The sealing surface and supporting structures are made from 100% polyurethane, to withstand extreme engine temperatures. The pliable flange with integrated bumps ensures a tight, no-leak seal.
Under normal driving conditions the Pro 5R air filter won't need servicing for 25,000 to 30,000 miles. When service is necessary, it can be washed, dried, re-oiled and put back in service. And the Pro 5R can be washed and reused repeatedly, so you'll never have to buy another air filter, ever. Universal Round Racing filters carry a 1-year limited warranty.
aFe® (Advanced Flow Engineering, Inc.) manufactures performance products for late model cars, light trucks and SUVs. The company was founded in 1999 with an initial concentration on high performance air filters. Since then, the company product line has broadened to include cold air intakes, fluid filters, exhaust systems, intake manifolds, intercoolers, programmers, differential covers, transmission pans and throttle body spacers. The team of engineers, machinists, production and sales people at aFe® have many years of experience in their respective positions, and together work to ensure they produce the best automotive products on the market.