Which one do I need for 1990 Mustang GT on stock pipe?I try to get two of them they say their are two different kind.I think they said 16 inch or 8 inch one.Which one Thanks
i work at a parts store and my guess is that they are talking about length on the wire. if thats the case just get the longer one and tie up the loop the extra length never hurts and its better than if you ended up too short