Wildogss

Flowmaster actually makes their own knockoff in an overseas plant, it is a black case, for about $30 less than a stamped one. They started doing this because they were loosing money to knockoff companies, once their patent was up the started manufacturing these muflers which are identical in every way to the original but with no stamped case. When you go to a shop u have to ask for a stamped case flowmaster if you want one otherwise the shop can install a flowmaster non stamped and charge the same. This is a loophole developed by flowmaster and muffler shops. Like I stated you can't tell any difference in sound at all the same exact specs are met but with cheaper labor. Don't waste your money on a stamp no one can see anyway. I use these on all of my vehicles and have ran Dino tests with stamped and unstamped, no difference, just don't get ripped at shop ask for a stamped if u want it, or say flowmaster unstamped made overseas they know and you should get a cheaper price. $20-$35 installed cheaper.