3 things that I wanted to be able to have or do when I designed the headers.
#1 easy assess to the header bolts
#2 no burning the spark plug boots
#3 be able to take headers off with engine in car.
I was able to do all 3. My old headers and and even the TTI’s I’ve had in the past on my R/T were a pain to get the bolts in.
I’m really happy with how they turned out for the first time doing anything like this.