ok here the problem: after i put in the aem short ram intake, i start to notice the vtec power are gettin weaker and b4, the power start to lose at 7200 but now it start to lose at 7000...i change new oil, spark plug wire and new spark plug like 2 month ago, so anyone know whats going on??? thanks

 

Probaly because you lost low end torque and it feels slower. Its a little bit harder to tell up top. A stock intake will give you torque on a stockish car.