A few weeks ago i changed from Aem to the PFC.



A friend af mine helped me tune it, it was going great.



It works great up to 12psi (0.8Bar), then i get something that reminds me about spark blow out. It kinda studers... The boost will keep on going, but theres no idea of keep on going. So we figured it was bad spark plugs.



But ut wasnt... I´ve checked and re-checked everything.



My friend is really competent, and since we thought it was the plugs. So i dont think he did anything wrong.



I didnt have any problems with the Aem, i could do hi boost runs with that. And i just changed to the Apexi... I didnt change anything else.



Please help guys.

I had same problem. If not using stock leads use NGK R6725-105 or -11 or -11.5 .

Why should i have to go colder, just because i´ve changed from Aem to Apexi.



That sounds a bit weird...