I think I was one of the first to introduce the deep brass nuts to the forums---I was taught about them by my old school mentor over 45 years ago! The metallurgy between the brass and steel keeps them tight with heat cycles yet they don't seize. Win-Win!

Jesse, you don't need front hangers with the straight 4 into 4 headers, only when you have the extra flex joint with J-pipes or the ball flange headers.

Jeff