I have a 1993 Miata that except for an air box is completely stock. In my opinion the air box just adds a few HP at the top end but sacrifices torque at the bottom where it needs it. I believe that it would be a near perfect car if it had the 2L engine. Just a few more cubes would do it for me. The post 2018 ND really intrigues me. However I am reluctant to test drive a new ND because I would really like it but it would not seem to be a simple Miata anymore. Quick question: MIG-15, rate or radius fighter?