Hello all, i just purchased a flowmaster kit from Summit and have a question. I couldn't get the collectors to line up 100% as a result i have leakage. Should the collector have a lip in it so that it can be bolted on to the header. The one i pulled off had one. I don't understand how the collector is supposed to stay in place without the lip. Are you supposed to make a weld between the collector pipe and the three bolted collar?Any help would be greatly appreciated.