Donaldson or Walker?

Donaldson makes a lot of different specked mufflers, part # M100463 only for highest flow. Ryder usually has the best price/availability. I have heard on here that the Walker Mega flow does just as well but I do not have any first hand experience with the Walkers.

 

Any of them will do. Just make sure whatever you pick does not have baffles. Mufflers for trucks that aren't "free flow" or "high flow" have restrictive baffles in them. If you look thru an M100463 or the Walker megaflow, or whatever brand you will see no baffles just a 5" hole that runs clean thru.

 

I used the Grand Rock mufflers on my truck and liked them.

 

Cowpie (who owns columbia glider) got walker mufflers and bought it for $80.

 

I just installed a set of Walker Megaflows on my W900L 3406E 2 months ago, they don't have baffles but when i looked inside it looks like a flared larger pipe going into a smaller pipe with a gap in between.
They are pretty quiet but they seemed to have gotten louder after a few thousand miles, but still quiet.
If u go online to Walkers website they can give you the nearest dealer in your area, mine were in Neptune, NJ and cost $74.99 Ea.

 

I had the donaldson M100463 on my last truck mechanical Cat, This truck I have the walkers on 6NZ Cat. You will be happy with either one. If I was doing it again, I would go donaldson, just to save a few bucks.

 

Which of them is louder?

 

The donaldson is slightly louder, but you would only notice with the jakes

 

What about walker megaflow?