I can't seem to find out what the actual part number is for a single cat Magnaflow catback. Even Magnaflow's own website lists the catback for the LT1 as fitting the 93-97, which is impossible, since there must be two different part numbers, one for the single cat and one for the dual cat. Other vendors do the same thing too though, but yet some list a 15620 while others list a 15619.

So which is it?

I've got an ever increasing exhaust leak, so I may need to replace my catback soon, and this is the system I've chosen but before I order it I want to make sure I don't end up with the wrong one!

 

Out of all the members on here, nobody has this catback and can answer this question?