Yeah they are nice lifters, and I didn't do any oil mods. I know some people say to bush the lifter bores, but I didn't do that, or anything else. I just dropped them in, setup the valve train and have been driving ever since.
Another downside/positive depending on how you look at it is their noise. Naturally they create a lot of valve train noise, especially with a lot of roller rockers. But personally I really like the sound!
