In general, 1 7/8 is recommended up to like 750HP on a NA setup. You’re also going to lose a little down low and coyotes don’t exactly shine there anyway. If you were planning FI, it probably wouldn’t make much difference, but if I were building a MAX effort, heads, cams etc.NA, I still wouldn’t go bigger than 1 7/8Just seeing who may be running a Stainless Works 2” primary setup on their car with it being NA and numbers it made if so on a 18 ported manifold. Also any fitment issues with it being larger than 1 7/8th