I am just about to get my new 2008 Civic SI; what should my first mod be? I was thinking about getting an exhaust but I’m not sure, it just seams like a good place to start. If anyone has another suggestion let me know.
x intake would give you 10-15 whp for about $300. then you have race headers, exhausts, maybe p2r spacer and gaskets. lot's of different things you can do. hondata img, ingalls stiffy/torque dampener, tires, or camber kit would be other things you should take a look at.