Hiya Duc21, Well Im in the same boat as you, well kinda. I dont have child on the way, but I dont have much dollars thanks to my 14 year old, but lets get back to your question. I put cold air induction on my 2004 BA XR6 and it flys. It cost me about $300 for the kit and put in on myself without too much trouble. I was happliy amazed with pickup and power that I got outta this easy mod. Give it a go if you have the cash I reckon its worth it.