Well since my car won't but I already have tags and don't have to worry about smog.So my question is which is better to go with ?.Also is a front door from a 4 door integra the same as 2 door ones
If you don't have to pass smog just go with a strait pipe. It's really your call though.
As far as the doors: No, the sedan doors are not the same as the hatchback.
High flow cat. Your car will sound very raspy. I went with a test pipe in mine, and now I have a cat sitting in my garage as well as a resonator I plan on putting on. My car sounds like crap above 3500 RPM.
