Quote Originally Posted by BurnTire View Post
I would go with what the car came with. Ribbed.
That was my thought as well, I asked one SVTP and a few members said it happened to them, and to go with a ribbed one because it helps with belt slip and keeps the belt alligned (which makes sense) they also told me to just buy a stock lightning tensioner as its the same thing and a direct bolt on to the Cobras and comes with a 8 rib pulley. Just need to find out where to get one at now