For some reason, my car feels slower after I installed my CP-E CAI?
I mean sometimes it feels like it doesn't pick up until like 4000+ RPMS?
Is there something that can be causing it?
Did this happen right after the install? If so, possible vacuum leak, which can be dangerous... I'd check all your clamps, if not do a pressure test.
The only other thing off the top of my head is perhaps the MAF is dirty, but that shouldn't just cause a "delay" in power. Do you notice more pull over 4K than the stock set up, or it's sluggish under 4K, and then about the same above that?
Did you buy it new or used? If used, perhaps the filter is all dirty.
I have an SRI, so I'm not familiar w/ the CAIs, but yeah, most people definitely notice a moderate gain, NOT loss from adding an CAI. Again I'd check the install, and the MAF housing at the least (i.e. make sure it's properly secured).