what is needed
If you are asking about lowering your car and wanting it to ride and handle well, things get a lot more complicated. The suspension works as a whole. When you change one thing it effects all the other parts. At the very least, springs and shocks should be matched together and replaced as a unit.
If you are running 315's out back you would need the adjustable PHR because they are big mothers and need to be adjusted to keep from rubbing. But if you are running the 315's, then you probably already have an APHR.


