I have a K&N intake for the 3.4L 99-04 Tacomas. It has only been used for 3k miles. The filter hasn't been cleaned yet. The piping already has the 1-3/8'' hole drilled out for the crank case vent resonator. Plus, the grommet has been secured to aforementioned hole with silicone (in picture). I'm also throwing in my barely used K&N filter cleaning kit (cleaner & recharger).