01WS6/tamu

iTrader: (36)

My 07 vmax has duals to the muffler stock. Guess it depends on how you set up muffler or mufflers. Stock cats fell off one day, did a magnaflow dual in single out and it sounds pretty nice. Really just a matter of spending money and playing with it till you find the sweet spot only you know you've reached.

BLACKND

iTrader: (5)

You'll lose low end power with your mods. I've had duals on 2 of my GM trucks, 1 cammed with pretty much all the bolt-ons and one with all bolt ons stock cam. Both were down on power down low. Went back to a single 3" with a good flowing muffler and it was night and day. Just my 2 cents and personal experience.

fast84

Thanks for your opinions guys.