my bro in law has 2 spare K&N cone filters that he used to use on a geo metro coupe. can i use it on the rex? and whenever i do get an intake what do i have to do just take out the air box and put the filter on that hard rubber hose and clap it? or do i have to disconnect some wires and stuff?

 

you have to check the part number and see if it matches the rx7. i think the part number might be 57-5005. or maybe thats for the fipk? i dont remember. its not that hard to hook up.

 

it depends on what year your car is and what size the cones are.. lengh and hole size.

 

As long as it has a 3" intake it will fit any 2nd gen with an adapter to change from a round hole to a square hole!
Ian