Yes for some reason the stock SC pulley is smaller than the other 2, so when you buy a replacement set the SC belt is going to be tighter. If you have a 5 or 10% blower pulley then you can atleast go back up to the stock belt size 080392/3 if needed. However, if you are all stock it is gonna be very tight and, likely wear out quickly & throw a lot of belt dust. As already mentioned the best way to get the belt on is definitely to place it over the 2 ribbed pulleys and, then lift it over the tensioner pulley - in order to do this you need a nice slim 18mm wrench that'll allow you to release the tensioner while sliding it past the belt & you have to put the wrench on first.