no, go with comp II...crower II, cat II, and even frII have the chance of having grindage needed...and the crower and cat require retrainers..from what i heard, comp II's are completely drop inCajun Boy876 said:Ok, I was about to order a SC from powerworks for my Zetec engine. But there is one problem. I don thave the Zetec engine! I checked under the hood and I have to 2.3 L Pzev engine. Does anybody know of any websites that have upgrades for this engine? Any help would be appreciated.