Believe me i dont have the 6l in my truck but let me tell you, you wont have any towing issues. you'll have more power than you can handle and watch for those zo6's,they'll see your tail lights..Congrats and enjoy on the extra million ponys you'll have. Dont listen to know one,They are top in the charger game and would sell a pretty add on you could see if it didnt work.I love mine