Awesome. Thanks for the help fahr_side! I think you're right, the 18G would be a lot of stress on my heads/ pistons. I think I'll buy the AOS anyway just because I'm frightened of risking oil starvation to a 16G. I'm planning to purchase: Perrin: EBCS, crank pulley, turbo inlet hose, TMIC, and AOS... Hopefully, all that paired with a HexMods VB Mod and 16G (or VF52 if I could find one -_-), my wagon will hold up ok for at least 30,000 miles. Thanks for the pointers.