Save your money. For the cost of the K & N's (you need 2) you will not notice any improvement in performance. The only possible benefit you *might* get is that you can clean and reuse the filters. If you drive your Esprit enough to have to clean them more than twice maybe you will save some money. I will go for the piece-of-mind of having a new filter installed when I need one. BTW, if you have your car serviced by someone, (not you) they might not even realize you have K & N's in there and throw them away!