Why do you HAVE to buy two things at once? It IS about listening to people. You've been told by several different people the same thing. That the BEST most cost effective thing thing to do is regear FIRST and save for the converter, yet you act as if we're speaking a foreign language. Your engine combo is GREAT. I would be damned if I would change it. The motor is NOT the problem. That's the most cost effective way. Is that not what you're lookin for?