wondering what header i should go with for a 99' z24 cavalier? any suggestions plz and thanx.

they all do the same thing. Is how ever much you want to spend and wheather you want a shiney or dull finish.

Basically get a shiny one with a superstreet logo on it and maybe some more logos. the shinier and more logos the faster.. for example..

super street + gran turismo / super sport x Rally sport - luxury sport = FAST!!!!!

Flanges can make a difference though.

LMAO^^ There are headers such as OBX which are pricy, Pacesetter is a value header made of mild steel and works great but need the ceramic coat finish. RKsport makes a set aswell.. just up to you what you want. A 4-2-1 is a little better than the 4-1 collection.

They don't all do the same thing actually.

A 4-1 header will give you more high end HP, whereas a 4-2-1 header will offer more low end hp.