I am asking this because I currently have a catback exhaust for a y7. I am thinking of buying a y8 header (no cat on it unlike the y7). Will that bolt on directly or is it too long/short. I know it will be catless, also isnt there like a oxygen sensor that I need to extend? Where can I get the extension?

 

bump for some answers

 

I am pretty sure all D series exhaust headers are the same. There are diffrent aftermarket options and diffrent bend patterns, but I am almost positive that any D series header can fit on a D16 y7 or y8 etc.

 

i know any d series header can bolt on the y7, but i'm asking if those headers will bolt directly with my y7 cat-back exhaust.

 

What car do you have? All that matters is that the exhaust follows the same chassie line, because your not changing the cat back, as long as the header is the same length as the olther one... it will fit.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by HCivicSi23 &raquo;</TD></TR><TR><TD CLASS="quote">What car do you have? All that matters is that the exhaust follows the same chassie line, because your not changing the cat back, as long as the header is the same length as the olther one... it will fit. </TD></TR></TABLE> that's exactly what he's asking... dot dot dot... He wants to know if his y8 header will bolt up directly to his stock y7 exhaust piping. And to answer your question, I believe that if you just run a y8 header without a y8 cat, it will bolt up directly to the rest of your exhaust, but then you have no place to put the secondary o2 sensor unless you weld in a bung somewhere, but you won't pass emissions w/out that cat and you're fuxing up our already fuxed up planet. As far as the o2 sensor extension, this is what I found so far: http://rywire.com/store/4wire-...f6d3e I know there's cheaper out there, just gotta search.

 

yea thats what i want to know and i'm not planning on doing this anytime soon, just when i have some extra money or something like that. thanks

 

No, on the dx the cat is part of the header.

The ex and dx are different lengths.

Just to confirm.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ek forever guy &raquo;</TD></TR><TR><TD CLASS="quote">No, on the dx the cat is part of the header.

The ex and dx are different lengths.

Just to confirm.</TD></TR></TABLE> Yes, the cat is part of the upper part of the y7 header. But if you remove the upper and lower part(short piece of pipe under the car), you should be able to bolt up both parts of a y8 header to the rest of the exhaust system without a cat.