just got my 50 series flowmaster for my 06 hemi this past saturday and it was ready to be installed tomorrow morning, LUCKILY my friends father just had his put on, and i'll tell you ..not much difference than the stock exhaust....packing mine up and returning it for the SUPER 40!!!!!!

 

The super 40 is the way to go! You just putting it in place of the old muff or you got a new pipe to put in also?

 

im gonna put it in place of the stock muffler, i also want the resonator taken out too ..so i guess they'll just run new pipe back...