[crabu2]

I hope someone can give me a good answer to this because I'm a bit confused on this....

The way I understand it .... the more air you pump into an engine, the more gas you need.. So a JB+ or the likes should cause a fuel economy reduction.

What gets me is when I hear people say they get better fuel economy with these box tunes when driving normally. How is that possible?

I see that when you're accelerating, you don't need as much throttle because you're making more power, but shouldn't there be a fuel hit even when not hammering on it? And when you're just cruising, and the turbo isn't spooling, wouldn't one be using the same amount of fuel as if there was no box?

Can someone give me some legit reasons/explanations on why I hear so many people say they get better mpgs with a box that increases boost?

Thanks!