In a message dated 12/5/99 8:55:50 PM Central Standard Time, DMCJOE@xxxx writes: << Here is something to think about. The horsepower difference between running the car with an OEM filter and no filter at all is less than 2 hp. So unless the K&N filter does some kind of magic trick with the air as it passes through the filter I would have serious doubts about any substantial increase in horsepower. >> Joe, When we did the dyno runs a few weeks ago in Chicago, one run with my car was done with the only change being the installation of a "prototype" K&N filter unit into my stock Delorean air box. The dyno chart showed a 3 HP increase at the rear wheels. I agree it's not a real big increase, but when you figure we're not starting with a whole lot of HP to begin with, I was happy with the results. Marty