DAN I overlooked the Dyno Chart since I have it in my possession and apparently there are mistakes on the actual graph itself from the hp/tq print out and the actual simulated Graph Power/Torque Curve. I'm gonna call JOHN and see what I can dig up. I'm simulating my own Graph Chart using the hp/tq dyno print out. And Yes I was looking at it wrong so thanks for correcting me and apologize for my accusation
The term "Back Pressure" is used in kind of lamen terms reffering actually to "Pressure Drop!" As an example, if the Pressure of Air lbs. per square inch was 15 outside (dirty air)of the filter and inside (clean air) was 10lbs.per sq" that is the pressure change and in result a pressure drop as the air enters the intake track. AFE's design brings that pressure drop to near 0, though it's impossible to actually achieve 0.
I can tell you for a fact that in every case that I'm aware of on actual dyno charts viewed the AFE always outflowed the K&N and the dyno #'s always support it, in some cases on small hp applications the difference was only 1hp but on higher hp applications the difference was more substantial. I've already told Chris Hightower that I'll send him a AFE Filter to test on the Dyno with the Turbo and I look forward to seeing what kind of results they get. I think Chris plans on using the S&B Filter.
