not really a 'best' place for an aftermarket piece.What is the best place to get a header with the o2 in it?
Provide link plz
Can you post pics of it please?
http://www.355nation.net/forum/engines-performance-tech-questions/77481-so-you-looking-header-your-i4-i5-v8.htmlthere are many many headers to choose from... all of them pretty good.
on here? You are smoking something lol. I think the absolute most I have seen is 150... I got rid of mine (gutted) for 75. Hell for a hunder bucks more he could get a header...