I saw a topic about an intake manifold and I got to thinking: 1. How hard are they to install? 2. What is a good one? 3. Is it worth it? 4. Does it effect smog for CA? The reason I am asking it is because a lot of people say it is a good idea but I hear some people say they are not worth it. I believe Skunk2 makes a good one but I dont even know who whould make another one. It wouuld be going on a '96 GSR. Thanks in advance.