I am just wondering if any of you have installed the Crower Cams (Street Spec) on your cars? I heard that those cams are hard to tweek out; as for the Jun Flywheel, there has been problems with the Starter grinding since the starter used in Japan is different vs the one used in North America? One of my friend is planning to get these items along with other mods, what are the pro's and con's. Oh yah, his BB6 is also equipped with ATTS.