Lower Radiator Hardpipe
This is one the few Stillen products that I installed with no problems and it has worked fine for the last few years. It is a rather straightforward product so I would not expect any complications. I highly recommend this product to anyone with a Z32.
When I purchased mine, Stillen was the only manufacturer of such a product, but today there are many choices to choose from. Just do some research before buying, as I have seen a really cheap imitation from RVM to cause a new engine to overheat and seize.