How long do MSD spark plug wires last?
 

I installed the 8.5mm MSD spark plug wires on my GTA about 10 years ago. I've also put about 100K or more miles on them.

All marketing BS aside, how long will these really last? They still look like new so I guess in my mind it's hard to trash them and install a new set...

Re: How long do MSD spark plug wires last?
 

as long as they arent cracking or arcing i would say keep using them.

Re: How long do MSD spark plug wires last?
 

I think the same way but at the same time I don't enough about plug wires to know at what point they will start degrading internally and cause voltage reduction due to increased resistance :confused:

Re: How long do MSD spark plug wires last?
 

yeah can always ohm them. find out what they are supposed to be and check against what you get