I have the edge attitude and plan to stack it with the predator or stealth tuner, probaly the 135, but will not run it there all the time. my question is, should i put a knew TC in while my tranny is out? What is the Transgo capable of handling without a knew TC? Most people upgrading there trannys put in knew TC, so i was wondering how it will hold without one. Also, for those who have done the Transgo install, how hard is it to do in a weekend, without a lift and what, if any, special tools are required for this operation.