well every little project turns into a big one on my fox. i was just replacing the 02 sensors. while removing them both bungs stripped. i took off the h pipe to get new ones welded on and its cracked in 2 places. i dont know what brand it is but it has bbk cats that were welded onto it near the h. now my question is what would cause a 2 inch crack near the h. im going to get a new one but i dont want the new one to crack. was it just maybe too old already?