okay, looks like 16g is out, I am looking for a none ball bearing t3 that is common and cheap to get, don't need too much power, around 350-400. More over, easy install and compatibility above all. I like the way stock manifold have the bolts from top for easy disassembly, but I need a T3 with external and won't crack, prefer cast, but the suggested on at the for sale section seems good.