stacks with twins....where's the exhaust noise?

[Todd T]

I have basically a straight pipe (plazma'd the muffler in two and welded in a section tieing the ends together) on my truck now with a full tailpipe and 5" all the way from the big turbo. it is barely audible.



I'm planning to go with a single stack (hotrod look) and was worried about it being too loud. but after straight piping it last night and still can hardly hear it i'm begining to think i dont need mufflers or resonators on it. right now, once its off idle all i can hear is the injection pump rattling



who has stacks with twins and can you tell me how loud (or lack there of) they are?

 

[nickleinonen]

one turbo is a good muffler, 2 must be better

 

[Pmaloney]

My truck is twinned and double 5" stacks and it is quiter now than it was with the single. I have a 5" downpipe, 4" all the way back (no muffler/resonator) than 4-5" adapters for the stacks. I am also a "true" 4 door so that may help, but I have also had some neighbors ask me if I put "another" muffler on it recently :-laf One even asked if I didnt weld it all the way since it has an "exhaust leak/loud whistle

 

[ChillyDog]

My system is 5 inch all the way from turbo to the stacks and it is noticably quieter than the old stock exhaust running into the stacks. The exhaust note is a lot more mellow now than before, sounds just like a big rig! Not overly loud or too quiet, just perfect if you ask me.

 

[vssman]

Maybe your going faster than the speed of sound??? :-laf