I have almost everything to start on the swap except the studs, Im using a 1/4 inch EGR delete plate, and stepped up to 70mm TB, I was going to guess somewhere like 5/16ths X 18 X 2.25 or 2.50
if they are metric I was going to tap to 5/16.
if they are metric I was going to tap to 5/16.
Ill cut em real close only so as to only use one washer for a bit cleaner look 