On the 2.4 manual you can hear it cross over but it is much more subtle than the RSX S or 06-11 Si, and unlike those two you cannot feel it kick in at all. An intake would most certainly make it more noticeable. If you want more info on this motor check out the forums for the 2012-13 SI, same motor.Hey guys, I'm looking into purchasing a ilx 6-speed MT and was wondering if you actually hear a v-tec cross over like the Rsx S or Si... I heard that this motor is an r18 which I know you don't hear no cross over what's o ever. I would love to find out because I would definitely want to put an intake and exhaust to hear the cross over better. Thanks in advance!