Silencer for flex pipe exhaust?

[Gordy]

Is this enough holes, or do I need more? Basically tried to drill holes in 4 “sides” of the pipe.

as many holes as you can get in it. If you can find some perforated steel and roll it into a tube it would be great

 

[BruceBanner1983]

as many holes as you can get in it. If you can find some perforated steel and roll it into a tube it would be great

Ok I’ll keep drilling lol

 

[Chainlube]

Are you just using a hand operated drill? I glued two wedges of wood on a board and run my pipes through the drill press. I then drill right through both sides at once.

Try for two more rows.

 

[BruceBanner1983]

Are you just using a hand operated drill? I glued two wedges of wood on a board and run my pipes through the drill press. I then drill right through both sides at once.

Try for two more rows.

Mobile drill guide

 

[Deleted Member 4613]

I have a 7/8 inch flex pipe on my HS-142 4 stroke and the noise
is no where near a two stroke. It's acceptable to me. Just sounds a
little more like a motorcycle. Dare I mention, it increases HP. as
tested on a dyno.

 

[BruceBanner1983]

Are you just using a hand operated drill? I glued two wedges of wood on a board and run my pipes through the drill press. I then drill right through both sides at once.

Try for two more rows.

How does this look?

 

[Chainlube]

How does this look?

That's nice, good job.

 

[BruceBanner1983]

I’m going to seal the hole where the tail pipe goes through the end cap with steel stick or something, but the muffler is finished other than that.

 

[Wrench]

How does this look?

It's close but put more holes
Perforated filter tubing

 

[BruceBanner1983]

It's close but put more holes
Perforated filter tubing
View attachment 203235

I already put it together lol