Very nice. I also read that a 4-2-1 header will give better performance in the mid rpm range where As a 4-1 design will give better high rpm performance. Is this the case?

 

Yes, exactly.

 

I did a little research tonight on my engine. I only knew it was a b16a the first 2 numbers in the serial number were 54 an I rea that it means is the jdm 92 crx sir engine at 170hp instead of 160. So if that's right I'm pretty pumped about it. I am also in the process of changing a head gasket and realized that the stock headers were a 4-2-1 setup. The 2 pipe piece was pretty big. I don't know if they got swapped out when the exhaust system was put on. They had like 2 inch tubing on them.