best placement of a muffler?

[Dzchey21]

towards the engine im sure if i would have reversed it it would have been louder.

 

[Strokersace]

That's what I figured. Recently bought a flopro system for the 6.0 and the the louvers were facing the back. And since the hangers were welded on, I couldn't just turn it around easily. I think someone welded the hangers on backwards on mine. Horrible hair dryer whistle.

 

[Dzchey21]

i could see that making it less effective.

I was surprised for a flow thru how much quieter it actually made it

 

[drunk on diesel]

it's kinda splitting hairs, but the louvered style mufflers are surprisingly restrictive for being able to see through them. I doubt you'd notice any change in performance either way.

Glad it worked out for ya

 

[Dzchey21]

yeah i have noticed nothing at this point, but its been snowing so boost is limited currently LOL

 

[kyle43335]

For a 6.4/ This is what i did. A turbine xl4040 under the cab, and the 5" packed muffler that came with my exhaust in front of the rear diff. Tail pipe is a stinger (the hangers broke on the tail pipe so i took it off and put the tip on the pipe shooting down over the rear.

I'm sure this will work exactly the same for a 6.7, as they have hairdryer noise as well.

My truck is quieter then stock at idle. Absolutely no interior drone. Absolutely no hair dryer noise. I do have a aero turbine xl5050 for when the packing burns out of the muffler from the exhaust kit.


The xl4040 is piped in directly after the down pipe. So yes, as far forward as you can get it.