Stang
Full Access Member
- Joined
- Oct 24, 2012
- Posts
- 689
- Reaction score
- 390
You're going to get a horrible resonance just off idle if you don't do a tune along with the CAI. Some are worse than others but the aFe stage II is horrible without a tune, at least on my truck it was. With a 5 star tune it ROCKS. They mod the tune to the length of the new CAI tube. Personally, I'd spend the cash on a tuner and drop in K&N and leave the stock box for now if funds are tight.