K&N builds good products....I use both air & oil filters......the oil filter with the one inch
welded nut is great for tight locations...such as a 3.4L Tacoma......air filters will last a long time..
clean mine once a year on three trucks.....use the K&N cleaning stuff & re oil very lightly....
do not over oil ! Also make sure air filter is totally dry before re oil...let mine dry out in the summer sun
K&N also sells cabin air filters.........
