Muffler ? (1 Viewer)

[Angelo]

Hi.
I need a new muffler and the one I took off isn't giving up anything. It's a custom job and the guys who built it aren't around for info anymore.
I have a 2F engine that I am told was bored out. cylinder compression is slightly higher then normal. I have 2.5" pipe off the header flange and a 2.5" back pipe. The old muffler is 31" long (from fitting end to fitting end) and about 7" round. The numbers 90 650 are the only things I can make out. How do I figure out/calculate the proper muffler to install?

Regards.
Angelo

 

[sggoat]

watching this, as I have similar exhaust dimensions, and need a new muffler and piping

 

[Curt]

The PO took the 40 down to a muffler shop and they fabbed up new pipe from the manifold back. Seems to work fine. I will measure dimensions for you.


I have a 18" long by 9 1/2 wide, its oval not round. Mounted from Driver out to passenger. No brand but does have a part number, searched it found it to be a Walker 18112 Tru-Fit Universal Muffler

Cheap but it works for now.

 

[Angelo]

Sorry for being delinquent with this thread.
I was able to find a direct replacement muffler, wholesale, and used the forward and aft pipes I had. I will try and find the info on it and post.

Regards.
Angelo

 

[Angelo]

couldn't find any paperwork but have the following pics to post. hope the numbers help.

 

[Ggodard]

magnaflo! MagnaFlow® - XL Series Stainless Steel Round Satin Exhaust Muffler