Hi just wanted to start out by saying hi to everyone as this is my first post! My stock exhaust manifolds had developed a large crack and being a welder/fabricator decided to create some new headers. I have ran these for about 2.5 weeks so far and have noticed a increase in power and the new headers produce a deeper rumble than the stock manifolds. During the build I decided to get rid of the 4 stock cats and add 2 magnaflow hi flow cats. I Used v band flanges for connecting the y section to the headers and the y is slip fit to the stock exhaust. Everything is made of 304 stainless and was tig welded and backpurged.