ok i have a 1st gen b16 block and a 2000 b16 head, i need new headers, which kind should i get that is not too expense, and do i have to get a certain one becuase the
1st gen has like an O2 sensor on the headers???? im not sure soo if you guys could help me thank!!!

 

shouldnt matter with the block/head combo so u want a header for a 2000+ Si or del sol vtec. u get what u pay for so spend the extra cash and get a dcsports or similar. as far as the o2 bungs u need two of them, one in each collector. hasport makes them with the bungs already in place, or u have to get them welded up.
https://honda-tech.com/zerothread?id=1255425

 

Just buy hasports header, it will make things very easy for you.