I'm currently driving a 2000 civic ex cp 5-speed and i cant decide on what type of exhaust and suspension mods to get. In terms of exhaust im not into the whole ricer sound i just want something that is going to provide a lil more power, smooth sound and give me some better gas mileage. And is it necessary to buy a full catback system rather than just the muffller. In terms of suspension im planning on buying a set of 16in rims and was wondering if i would need to get a susp kit to accomodate the new wheels.

If anyone has any advise or ideas please let me kno,

Thanks
redraider