Was useful on the older turbos that were a lot stronger but had lots of lag.
Modern turbos, if set up correctly, suffer from hardly any lag (unless you go mad on summat like a 78mm turbo!) and an anti-lag system will destroy it.
The anti-lag injects fuel between changes or to a certain rev limit when idle, this ignites due to the temperature in the exhaust and gives the turbo a massive kick to spool it.
Modern turbos, if set up correctly, suffer from hardly any lag (unless you go mad on summat like a 78mm turbo!) and an anti-lag system will destroy it.
The anti-lag injects fuel between changes or to a certain rev limit when idle, this ignites due to the temperature in the exhaust and gives the turbo a massive kick to spool it.