I have been thinking about it more and more now that I am about to build up my SC4. I know someone who is selling an Apex'i AFC for dirt cheap($100 bucks and I was there when he bought it 4-5 weeks ago). I am 2 weeks away from having my custom exhaust made, I've had a custom intake pipe made and I'm ready for more power. Do you think the AFC will be worth the money or would it not really help power output? I also know some guys who own a shop with a dyno so I can have it properly tuned for about half cost. I'm excited to finally start making more power and all the sudden I'm getting great deals on parts! hahah