I just received my flowmaster 40 series delta flow in the mail... I think... I ordered it from jegs and the part # is for a 40 series delta flow but it says super 44 right above the part #! I will post pic in a bit
Thanks

 

So what are you needing help with? If it says super 44 on the muffler, but has a 40 parts number on the box someone screwed up. I would just get in contact with whoever you ordered it from and let them know the problem. I'm sure they'll fix it and send you the muffler you want, just don't tamper with the one they sent you because you'll probably need to send it back.