How is the 12V with ZEX kit doing?

I noticed after I upgraded my nitrous express kit from 50 to 75 shots the engine idle become a little rough. Luckily, by changing the idle value from 132 to 128 using VAGCOM makes the idle back to normal (phew!).

it's probably because the air meter is pulling a lot of air when you trigger the N20. Your ECM is thinking.....What the Hell is going on....

Jay

volume, not the volume. It's not forced induction

It would somewhat solve lean mixture issue, because MAF would detect higher air flow and adjust fuel amount.