Quote Originally Posted by A4ringedONE8T View Post
A .73 a/r would spool slower than the .63 I got so why would I want that?

Does Pagparts make a downpipe and everything that bolts up?
Apples to Oranges...

You are comparing .63 t3 to a .73 t25. Its not a direct relation. Regardless, we are talking about the ability to spool quick and run 10s if you decide to go BALLS OUT......

As Clint said Arnold sells manifolds, but he came up with this setup for people with apr stage 3 needing an upgrade path.

You are too deep with ATP now to turn back, so just make it happen. I am sure you can.

Are you going to dyno on the stock motor?