Hey guys i recently changed my ex manifold, the one i had was alot smaller piping than the you i installed, what change should i expect to see, more whp or less, faster spool or slower. help me out guys. The old header pipes where like 30-32mm and the new one is like 40-42mm both ramhorn style.Oh the old one was a ssac (I KNOW JUNK) the new one is ramhorn.

 

drive and find out