I'm running a single stack on the passenger side of my truck, 5" the whole way back from the downpipe.

It sure does drone at some speeds, but other times sounds awesome. I run around 2100-2200 rpm at highway speed and with the windows closed it's all engine, no real drone. Get on the throttle and the exhaust gets loud pretty quick.

I'm running a 1994 F350 reg cab, 4x4 with a 91.5 12v. I prefer the rotary 12v, they are slightly quieter in my opinion than the p-pumped engines.

 

I am getting ready to slide the stock plate and afc forward, will i have to adjust the govenor arm too?

 

update. got it all put on, 5" from DP back to a 5" stack, thing sounds awesome!

windows down, its 10x quieter in the cab, and even windows up, you can barely hear it. about 30mph in 3rd, 52 in 3rd, and a little over 70 its gets loud in the cab for just a second. cruising in 5th anywhere from 50 to 70 you can barely hear the exhaust

 

I can assure you though, that anyone beside you, especially if their window is open, can easily hear you. Perhaps enough so to be displeased. I've received a few negative salutes in response to the exhaust of my truck!

 

Oh yeah dude its loud as crap outside the truck

But think about it this way. If Im in 4 lane traffic in town, and someone is driving beside me (particulary a car), with side exit exhaust all that sound is going directly to their window, whereas with a stack, its going up in the air. I feel this is much less disruptive and shocking to little ol granny and grandpas in their caddys and town cars driving next to me

 

does the style of stack change the volume coming out of it, ie turnouts vs straight cuts or miter cuts?

 

My stack is the 90 degree radius, so the stack orientation puts it pointing parallel to the ground and approximately 45 degrees towards the rear and passenger side of the truck. The stack does not go any higher than the top of my cab, so my stack is essentially in the window of every SUV, van and pickup, and even worse for larger vehicles, such as big trucks.

It is a very unique sounding truck I should make a youtube video one day. I love driving it with the rear window open, but I usually have to wear my earplugs for a long drive if I do that.

 

I wouldnt say it changes the volume, but it does change the direction of where the sound is going.

 

Nice!

 

Heres what I used. DIY stack kit and 5" exhaust system I built myself, all for under $200 Stack is not in the pics, picked it up for $25 from a junkyard.

3" to 4" adapter, 4" to 5" adapter, 5" 90*, 5" flex, 5" clamps, and 5" to 5" connector



5 feet of 5" pipe