Muffler Modding an Echo Backpack Blower

I got a couple blowers from a member on AS that needed pistons and cylinders cleaned up,took some pics of what I did to the muffler. This is on a PB620ST.
First step was to lay out my cut.




Next I cut it open with a plasma cutter. There I found the major restriction inside.





Once again plasma to get the cat out. Nice hole left behind.






Side view of cat.






These two pics are welding back together. I petered out on the picture taking after that,but i groubd down my welds and put the deflector back on and you cant tell I was in there. Enjoy

 

Nice work !!!!!!!

 

Drop it off. Ill do it.

 

I been wanting to modd my echo string trimmer.

After doing the MTD cheapo model I did a few weeks back and how satisfied I am with it I will make a point to do my trimmer now.

If I had a blower id do it too!!!

 

Thanks And you are welcome to stop and drop off yours.

 

Usually works better to clean the pant off BEFORE trying to weld!

Hope you don't have any neighbors!

 

I figured the paint got burned off from the plasma. Its not that loud. Id say its as loud as my Stihl BR320.