I actually went ahead and installed them and omg what a nightmare, I had everything but, my engine apart. I ordered Pace Setters and they are actually not as loud as I thought they would be. If I did it over again I would not have worried about them. I definatley had to drop my K member, Tranny, oil filter, lower brace, strut tower brace, cold air intake, throttle cables etc....I haven't dropped it off the jacks yet I am almost done, I have started it though, its kinda quiet until I rev it up. its taken about a month in my spare time with my father n law to help me.