Heavy-Duty Construction for Extreme Conditions Sturdy Wrench Nut Makes Oil Filter Removal Quick and Easy Resin-impregnated Filter Media Provides Maximum Filtering Surface for Contaminant Removal Anti-drainback Valve (where applicable) Eliminates Dry Starts, Prevents Oil from Draining back into Crankcase during Engine Shutdown Drilled Safety Wire Holes for Racing
Customer Rating: Summary: Good K&N quality, Good Amazon.com price Comment: I purchased this filter for my Mazda 3 2.3 L. Fit and finish were great, and the item appeared to be constructed much better than the OEM Mazda/Ford filters. Both gaskets were included with the filter. Amazon.com had a great price, and I didn't have to hassle with finding a car parts store that carried this rather obscure K&N filter.