Well, I put it in after installing an entire new set of Iridiums... $70 worth of plugs. Fouled every single one of them and now for some reason I can not boost. Every time I get into my boost range (upwards from 3K RPM) it cuts out and sputters. One of my friends thought that it was possibly a fuel cut symptom so we replaced the fuel filter. Still there. Tonight I re-Seafomed the Z and everything went smooth. Tons of smoke, and peoples reactions were hilarious, I installed new NGK Iridiums that I have been waiting on from SpecialtyZ and it is still putting, and actually feels like one of them is not firing. I am at a loss for what could be causing this and am just hoping that something did not happen to my injectors when I ran the gas tank treatment.