Exhaust Muffler For Predator For Champion For Duromax DuroMax For UST Kingcraft For All Power 5500W 6000W 6500W 7000W 7250W 7500W 8000W 8500W 9000W 420CC 11HP 13HP Non-Inverter Gas Generator

It made the generator a lot quieter that's what I wanted. I had to modify the inlet to fit my generator combo. That wasn't a problem. Good product.

Beware. While muffler does bolt up to engine, the measurements shown in pictures does not match actual muffler received. Received muffler is is closer to 9.25 inches in length vs. 9.75 and i.d of pipe is under 1" vs. being 1". This may or may not work for some.

When trying to attach bolts slightly off which made connecting slightly difficult

This is not close to what I need need to return it. need a pre-paid label and br code please it is not for me and the person is living in an RV

Not quiet. Too much backpressure. Unusable. Terrible return policy

Muffler is garbage bought it to cut down the noise level no change at all it’s not worth the money do not buy it

Seems like a pretty good muffler for my Honda GX390 it does have baffling in it because I can't see through it so that's a good thing sizes about perfect. 2 months later got it hooked up and was a very quiet Muffler material quality was also very good which I didn't expect I did go over some of the Mig welds on the brackets and the inlet pipe with my TIG welder which everything welded perfectly

The original DuroMax XP10000 had a different length exhaust manifold so you will need to use the one supplied with this muffler. The end bracket on the generator need the top hole enlarged a bit to get the top bolt in. No tabs for the heat shields but it will work with a bit of effort.