just bought and installed k&n fipk gen 2 intake and cat back flowmaster exhaust in my 04 1500 hemi then read the article in one of the threads that the hemi computer is a speed density system and cant even recognizes the increase in air flow now i feel like i wasted alot of money and if the engine is getting more air and the same amount of gas that the stock computer is programmed for i am probably hurting performance please help with any suggestions.

 

I really don't know the particulars of the mysterious Hemi computer, but I have seen plenty of dyno results a DTW and other sites; CAI increase horsepower and torque.