Muffler Mod/Replacement

Finally hit enough limbs while mowing to break my muffler off the tractor. I found this muffler on ebay.

It’s made by Iveco and is apparently rated for diesels up to 125HP and has a built in flapper, need to put a can over the pipe when storing the tractor in the weather. For $25.00 buy it now price and $15 shipping thought it was a good deal.

 I had to make an adapter since the stock exhaust pipe is smaller than the new muffler 2.5″. Here is what it took to make it:

1.You need the old muffler flange that bolts the muffler to the exhaust manifold extension. I cut the flange off with about an inch of stock pipe left on it.

2. 11” of  2in exhaust pipe from autozone

3. about 3” of 2in rigid conduit from Lowes

I basically welded the 2”x11” exhaust pipe to the old flange after dropping it over the old pipe. Then I welded the 2”x3” rigid conduit flush with the end of the exhaust pipe. I painted it with some 2000F paint and that was it. Here is what it looks like when finished.

The muffler came with a clamp for the joint where the muffler meets the exhaust pipe. So once the adapter was bolted on it was simple to drop the muffler on. The new muffler is about 10lbs heavier than stock so I added a brace to help support the weight and to keep the limbs from breaking it again. All in all cost was about $60 and about 2hrs labor.

Think I have a better than stock muffler with the flapper and the muffler actually seems to make the tractor a little quieter, plus I think it will take more than a 2” limb to knock the muffler off now. There were 5 more of these mufflers left on ebay when after I bought mine if anyone needs one.