I’ve got a very nice 2006 3.0 4x2 extended cab. I know it’s a 3.slow but I’ve put an accel supertuner & a jet MAF so far. I’m debating putting a chip in it. I’m not racing it, I’m just trying to get every drop of water I can out of the sponge. So far I’m really impressed with the results. I know it has a CAI from ford. But will a k&n or another (better) CAI help or should I just cut the bottom out of the box for more air? Next is exhaust (hollowed out) the big cat! I be doing a cat back soon any suggestions, 4 sound & power?