shark_curious;3853470; said:off the top of my head i dont know. i can check later tonight but i wanna say 1.5?
shark_curious;3853625; said:no i have dual overflows. how do you do the math to figure that out?
shark_curious;3854125; said:ok, the actual cutout is 2.5 in and the pipe inside is 1.5 so is a 4x turnover rate ok?