First off, props on the write up! Great job Tim!
Secondly, I think another look at this would be the fact that dyno results aren't necessarily the best indicator whether or not a part is truly effective. One thing that dyno results don't show is how much air flow you are getting on the road at 5k rpms...when the car is actually moving and collecting air respectively, it can truly make a huge difference.
I didn't notice a big difference after installing my JLT. Of course it IS tune required...with that being said up top...above say 4.5-5k rpms, I did notice it pulled a bit harder.
Honestly, this is simple physics...how much it gained? Not sure...but I felt a difference when my car is sucking in a lot more air at higher rpms!
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