just curious to know which is more efficient having a air boxed k&n filter or an actual intake with the k&n filter. i have a intake w/ k&n filter on another car but curious to know which wud give me better gas mileage on the z... id appreciate any feedback...
this might be a question for general forum... feel free to move it or del it..
Follow Ups
k&n filter air box vs intake - panchoda23:58:03 04/19/08