Resonator Install

The Cummins Onan generator is rather noisy, but adding a resonator (kinda like a muffler) makes it a little better.  It takes the edge off the percussive sound from the exhaust pipe.  This was a fairly easy modification which didn't take more than half an hour.  Basically, you cut off the last bit of straight pipe after the bend, and attach the resonator in it's place.  In my case, I needed a new strap hanger as well.

Parts I used:

• Cummins Onan Resonator 
• Walker Exhaust 35325 1 1/2" Hardware-Clamp
• Walker (35413) 2-1/4" Standard Duty U-Bolt Exhaust Clamp 
• Nickson Exhaust Pipe and Adapter 17165
• Permatex 80335 Muffler and Tailpipe Sealer, 3 oz. 

Tools I used:

• Husky Auto Release 2 in Tube Cutter (could substitute a hacksaw)
• Crescent Wrench (conventional adjustable wrench)
• Socket Set

Video of the process: