Obvious ripoff if you're talking of the ebay type modules that cost 20 bucks or so.
2 primary choices exist for the Titan, the VKPro Module from Stillen (~$700)and the Osiris Software ($710) or Mail-In ECU Tune ($300-500) by UpRev. Search for details. Also try the search prior to posting new threads. It'll get you answers quickly to the questions that have been asked many times before. Welcome to TT!