I have a dc 4-2-1, 1-piece ceramic header for a 92-99 civic.

Can I bolt up this piece up without moving my front subframe (stock)? Anybody done it?

 

i took a ls-vtec out of my 96 hatch and put it in my crx and it had a dc 4-1, i had no problems

 

The 4-2-1 doesnt present any problem apart from only having one O2 bung (troublesome if you are using a OBD0 ECU).

 

That's comforting, but I am pretty sure my DC header has a lone 02 bung at the same location as the stock manifold in my 90 Si.

BTW: I thought that only OBD2 cars used two 02 sensors...

 

Anybody actually done this?

 

If it's a SOHC D-Series it should fit, as long as you cover up that O2 bung near the cat if it does have two bungs.

 

Well, I answered my own question. You can't get it on without dropping the front subframe. I tried earlier today after removing the stock manifold, and no dice.

As I said earlier... I know it will bolt up. The problem is that you can't get it into position without actually removing the front subframe to make space for it (due to it being one piece).