What will not fit? Are headers, exhaust, etc all compatible across these years?

Thanks,

 

depends...

GSR headers n cat are different
the non-vtec models are all the same

 

Exhaust is different too - the mid pipes for '00-'01 are shorter than '94-'99 , axle back sections are the same (i think but not sure this is due to a 2" longer cat) - it took me a 'lil while to get the correct mid pipe for my exhaust

 

the header and exhaust will not fit....trust me grrrrrrr