Hi... I have tried about 6 times to get my headers to connect right with my orig. h pipe.. have it pretty close... I can tell its a tiny leak because the sound went from a tick squeeky noise.... to a chirp after trying again with hi temp silicon... if I feel around the flange I can feel a couple very small gaps.. and the slightest pulsation... If I pack as much silicon in the gap by hand.. is there something I can wrap it with or something???