Whats good H-Tech this is my first post. I just put a d15 from a 93 civic in my 89crx HF the manifold don't bolt to my exhaust system what can i do. Will a d16 from a crx bolt up to the block.

 

what sort of exhaust do you have?

i'd try the manifold that came with the engine.

 

since he has a CRX HF, it would originally have the short manifold with the cat positioned in front of the engine. in order to use the D15B7 manifold, you will have to remove the downpipe that is currently there running under your oil pan and add a catalytic converter (or test pipe) between the end of the D15B7 manifold and the rest of the exhaust.

or if you have the HF manifold and cat, just use those on the B7 head.

 

Did i get u right u said my HF manifold should work on the b7

 

yep, same bolt pattern