I went with the 3” kit from Holley. I haven’t installed it yet so I can’t comment on the fitment, but from what I‘ve read it’s second to none. I wanted to go with the pypes originally to save a few bucks and then decided against it. At this point in my build I’m starting to get impatient so decided to spend a little more and get something engineered well. Here’s unboxing on Christmas Eve. It was the last big purchase besides the rear end. The welds look good and that’s coming from a pipe welder by trade lol.