This one time, my truck started running very rough (I am not going to tell you why) so I took it and had the injectors tested. Turns out three of them were bad. Since I enjoyed pulling them out so much from the o-ring install just months before, I decided to do it again. This time though, I sent them to Illinois where the Hypermax guys rebuilt them to their Stage 1 specs. This means more fuel flow, which means more power and smoke and tire wear and pissed off hippies.

I also replaced the o-rings again, and put in new glowplugs cause I am not planning on taking the valve covers off again for a while.