Products & Reviews
Top Oil Filters Tested for Restriction and Filtering Efficiency
Brand Ranks tests four popular oil filters (Fram, Mobil 1, K&N, Walmart) to determine their restrictiveness and filtering efficiency. [More…]
K&N
Products & Reviews
Which Air Filter is Best? Fram, K&N, Wix, Purolator, AC Delco Showdown
Project Farm tests Fram Extra Guard, K&N Performance, Purolator, Wix, AC Delco, and EP Auto automotive air filters. [More…]
Products & Reviews
Are Performance Air Filters Worth the Extra Cost?
Performance air filters claim to increase horsepower and improve acceleration, but do they actually work better? [More…]