I am swapping a d16z6 head onto my (Civic STD) d15b1 block and I have questions:
First, the Civic STD cat is on the header, not under the car like the DX and Si, so I purchased a DC Sports header for a 95 Civic (this is correct right? Since it will attach to a 95 head) and I need a cat to connect to it. Do I need a cat for a 91 or a 95? Are they much different? Will the 91 bolt onto the 95 header? I will be using stock exhaust from the cat back, so will it have a fitting problem since there is no cat under the car or will it all bolt up to the existing exhaust system?

Second, I will be using the stock airbox and intake and since the Dual Point will be swapped with Multi-Point, do I need to buy an Si hose since it would be slightly shorter than the DX since the MPFI manifold is longer or will my existing work?

 

the heads have the same bolt pattern, but i hope that header will fit under the d15 block i don't know? i had to mix and match stock manifolds in order to get the exhaust to fit on my z6

 

bump.

Anyone else know?