I was cleaning my intake system and once i removed the box out on the side of my intercooler it said TOYO INTERCOOLER, is that an aftermarket intercooler???

 

do you have black plastic end tanks on your intercooler? If you do, then they're not aftermarket. If they are, who ever makes them are STUPID

 

Are you sure you don't mean Koyo Radiator?

 

toyo radiator company makes the intercoolers for big diesel trucks. people use these all the time as an upgrade for the stock IC. are you sure it doesn say toyo radiator on the intercooler, because that is what all the isuzu trucks like the npr and nrr say on them.