I'm putting a B18C in my 97 EJ8.. for now I'm using the stock manifold but eventually will get a 4-1 header. Also I have an Apexi N1 catback.. what should I do about a cat? is there no way to get a carsound or aftermarket high-flow that will be a direct bolt up? -t.i.a.

 

Check with Ractive or Toucan. They sell a hollowed cat that is a bolt on.