I'm impressed with the results of his "test". It is hard to believe he shaved off 0.6 seconds just from filters alone. But it begs the question how well can the K&N or Greene filters filter if they let that much air in. I have had K&N filter on many of my vehicles. The throttle response was always considerable. Although I had never dyno'd before and after a filter change alone I suspected there was some gain I did see from the filters. Usually though the exhaust and intakes were modded simultaneously and dyno'd after both.

I may need to stop buy the store on the way home to get a pair. As posted earlier in a separate thread I am in the mid to high 12 seconds already and the car is completely stock. K&N could be a big difference.

I will be on the dyno Saturday morning assuming all goes well. I'll post the results. I am getting stock hp numbers for my car. I'll swap out the filters after the first 3 runs(always with proper cooling time for accuracy) and see what happens.

I have a sense that proportionally bigger increases would be seen on the track due to the ram affect our intakes have versus a dyno in a static position.

leadfoot