Which is a better exhaust for a HP SBC IMCO Power flow or Stainless Marine.
I not sure which way to go and need some help with this selection.
Thanks

Better.. Either will be good. I have a set of EMI Thunder manifolds that I added O2 bungs to and extended risers that I have on a 600hp blown SBC. I am going to go to lightning headers soon. If you can wait a little, I'll give you a real good deal on mine. Unless you have 600hp small block, these are as good as any of the available manifolds. I also have shift brackets and hose Ys that go with it. I don't use those, so not sure exactly what's all there, but can dig into that part if you're interested. What's the wider application? Silent choice, straight through hull, what boat?