[ATI Performance Products]

We make a few changes to TB only converters. Such as they get a cast cover instead of welded cover, and the double anti balloon plates welded in. But if the TB combo doesn't have a bunch more power, more weight, or less gear then its worth a try for sure. If nothing else you have a baseline that a converter company can work off. No real way to get all of anything that is in the converter out. Drain plugs are tough since there is not a lot of meat in the converter, high pressure and high heat....bad combination to have a drilled hole with something that can come out in it spinning engine RPM. You will see them in diesels since they are really thick converters and spin low rpm. But still not common.