aright so im runnin stock headers on my 99 d16y8. lookin to buy 4-2-1 dc ceramic's off someone and was wondering about the o2 sensor stuff. i dont really understand nething about that. all i know/heard is i need some sort of o2 extension harness or something?

ne1 give info on installing the header?

btw i did search but couldn't find useful info. maybe i just wasn't searching the right info

 

bump...ne1?