My brother has a 1989 Civic DX Sedan. He needs to know if the OEM header design on the D15 is 4-1 or 4-2-1...can you guys help me out?

 

4-2-1

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 91civic &raquo;</TD></TR><TR><TD CLASS="quote">4-2-1</TD></TR></TABLE>

nope, those cars come with a cast iron manifold and a single tube down pipe.. so its actually a 4-1 design....

 

I always thought the std and hf models came with the 4-1 design and the si/dx/ex came with a 4-2-1 design. I guess I stand corrected.

 

Thanks a lot for the help!