i have a 99 duango with 4x4 and i am lookin for dual exhaust flow masters probably 50 series but i am trying to find an exhaust taht wont rumble my back seats so teh ride is sill comfortable, but dont get me wrong i like to hear the engine roar.

 

Don't use the FM 50 series. It does have a great, deep sound when you nail it, but the constant droning is not only bad, but I have a buffeting like sound when accelerating lightly and at certain steady speeds. Others have mentioned the same sounds. I plan on changing to a magnaflow as soon as I can afford a new muffler. Others have stated the magnaflow and dynomax mufflers have a nice sound when accelerating, but quiet down at a steady speed.


I have a 50 series SUV muffler. Like I said, I have come to the same conclusion as others, Flowmasters are just too loud.