Right, you know that lag is a term defining how long it takes for turbo to spool up and produce effective boost yeah?
What an anti-lag system does is manipulate fueling and timing to produce sufficient exhaust gasses to keep the turbo spooling, even at idling.
That way, when you jump on the throttle, your turbo is already capable of producing instant boost.
On the downside, you will reduce the life expectancy of your turbo, exhaust and cat (by how much is defined by how 'lairy' a system you choose) and your fuel consumption will increase.
But it is the magical way of going faster without producing more power. And if its good enough for th WRC boys, its got to be good enough for us GTi boys
