I have a 5.4, with Magnaflow muffler, dual exhaust coming from there. Currently, the sound is super deep, but very quiet. The tone i'm going for is loud and deep.

After I remove my 4 catalytic converters, how will my truck sound? Will it keep its deepness and get louder? Or, will it get nasty raspy sounding? Or, should I just remove 2 converters.

 

take all 4 out and put in 2 high flows. It willgive you the best sound, more agressive and deep.

 

x2, and if that isn't enough a manual cutout infront of magnaflow will give it a much louder, deeper sound. Hope this helps.

 

Hey Keith if you get them cats off, see if you can post a clip up, would love to hear how it sounds, thinking about taking my cats off as well. Are you doing it yourself or having it done at a shop?

 

x3 and you will still be legal

 

no muffler and just run cats. A former employee i use to work with had a 5.4 with no muffler and running true duals coming out at the bumper and it was amazing sounding

 

x4