Hey guys, hows it going? I tried searching, couldn't really find a solid answer. I have a first gen B16 with a stock exhaust manifold, and a cat back exhaust in my '88 CRX. I recently bought a Greddy 4-2-1 header made for a 99-00 Civic Si. From anyone's experience, will this header bolt up, or will the collector area/ flange need to be modified. I know the 4-1 headers usually need to be modified because of the large collector, but not too sure about the 4-2-1 setup. Any help would be greatly appreciated. I'm just trying to figure this out before hand, because my exhaust guy is appointment only! So if he needs to modify the collector area.... I'm not concerned about the o2 situation, I already have that figured out.

Thanks in advanced!

 

ony the o2's are different, it will bolt up the same and is the same length no mods needed

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Crx Jimmy &raquo;</TD></TR><TR><TD CLASS="quote">ony the o2's are different, it will bolt up the same and is the same length no mods needed</TD></TR></TABLE>

This guy always helps me with the tech questions. You save me alot of trouble man, thank you!

The car will be running on a Zdyne ECU, which has that one wire o2 setup, so I should be good! Thanks again man!