When i got the car it came with a scorpion back box but i know there was something not right cause it didn't sound as t should do Ive had them before. So on a closer look i saw the pipes where leaking from every join like where the clams goes and stuff also the worse gap was on downpipe was not really joined to the cat pipe section it just kinda of sat together i could squeeze a finger in the gap so i done what i could as a short term fix bit of gungum and some of their bandage stuff. but its vibrated loose again so it defiantly needs redoing.i tried to tighten what i could but i guess it wont cut it. just looking for some good tips on products to use thanks