If you're going to run an essentially stock system anyway, why not run the stock ECM/PCM if you can? No tuning needed on a stone-stock engine/trans, you just need to convince them that they're in Durango/Dakota/Ram/Whatever they came in originally. No reason you couldn't install the emissions items necessary to keep the ECM/PCM happy. There's not much to be gained by ditching the converters, especially if you go with a couple decent high-flow units. For that matter, you could go with just one in a single 3" pipe and either split to duals after the axle, or heck, right after the cat. A buddy of mine just did a similar swap with a new Hemi in to his 93 Ramcharger, and it turned out to be a great package. The only thing that doesn't work that used to is the cruise control. He thought he could learn to live without that...

Clair