Stihl 460 muffler questions

The stock muffler on my 460 only has a tiny hole for the exhaust. I was going to modify it but then I discovered Stihl offered a dual port muffler. Along with a multitude of available aftermarket ones with different ports.
What one is the best choice ?
The saw is on the schedule for some extra sausage.
As always thanks in advance for your help
Keith

 

The sausage factory will mod that muff for ya...

 

Kevin puts an extra hole in it and it looks semi professional. Jk he did a really nice job adding an extra port on my 400.

 

I'm on the list but it's 4 months out.
Gonna bug the crap out of me till then.
It's just, to me at least comically small, like they put the pilot hole in and went to lunch.

 

+1 Just hang in there and let Kevin get it all fixed up for ya.

 

Maybe if you pop it off n send it (muffler) to Kevin he could do a muff mod appetizer for ya...

 

I'm willing to wait my turn. I know all to well how insertions can trainwreck a schedule.

 

Yeah I can do that, I don't really need to even use the saw.

 

You got a spare one do ya?

 

This is the one on my 241 that went to the sausage factory.

Factory outlet is on the chain side.

 

The factory side was also opened up.

 

Kevin did my 036 and added the second port in a most professional manner.

 

Some work from the sausage factory. Kinda subtle, don’t you think?

 

One?
That saw is number 6 so far this year.......
Yes I have a problem

 

Agreed. I can't believe how factory it looks.

 

You can tell when someone actually cares about what they do. And Kevin does.

 

Get the muffler with the largest opening but will keep the spark arrestor in place.

Here is one I did on my MS460

 

One thing to keep in mind about muffler mods. USFS screen is allowed to have a maximum .023” gap between the wires. It flows about 30%. You’ll notice that the screens are always set back a ways from the hole that they feed. No sense making a hole larger than 1/3 the size of the screen, if you’re keeping the screen in place