51” Donaldson, remove baffle?
#1
51” Donaldson, remove baffle?
OK, guys.... just got my 51” Donaldson to replace my strait pipe. The strait pipe is just getting old. It sounds good a low RPM’s in town, but is annoying going down the highway and in the woods.
Should I remove the baffle in this thing or put it on as it is? Any one ran it either way or both?
Should I remove the baffle in this thing or put it on as it is? Any one ran it either way or both?
#2
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At first i left mine in but a few looks at the pyro and I took it out. Yeah its got hole in it to let stuff pass but mine got glogged with soot and started to cause problems
#6
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anyone notice if knocking the baffle out caused like a howling sound at higher speeds? i noticed around like 75+ it makes a howling sound. i knocked the baffle open alittle. but i didnt open it all the way open, i might.... or just switching back to my other muffler.
#7
What kind of pyro numbers did you start seeing after the install? (how much higher then before?)
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#8
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Not with a muffler, but my stacks howl alot.
#9
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i dont get it- my previous free flowing, no baffle, you could see straight through it muffler i had before from hog performance didnt howl or anything. it was just obnoxious. the donaldson causes like a howling sound when cruising or accelerating now its weird. probably going back to the hog performance piece, so a donaldson is up for sale LOL. 3 weeks old.
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#11
The Donaldson is so restrictive that it clogs up? I never heard of any muffler doing that. How does it compare to a strait pipe (mine is an 4.5 & I still have the kitty).
#12
Well, I knocked the baffle open. The inner baffle is a perforated 4" pipe that has the end crimped shut so the flow has to go through the perforations.
It took a little effort, but I was able to open the crimp up to about 80% of the 4” dia pipe area making somewhat of a venturi. I can see how the perforations could clog with soot.
I’m still waiting got a pipe cutter to come in, but I hope to have it on within a week to see how it sounds.
It took a little effort, but I was able to open the crimp up to about 80% of the 4” dia pipe area making somewhat of a venturi. I can see how the perforations could clog with soot.
I’m still waiting got a pipe cutter to come in, but I hope to have it on within a week to see how it sounds.
#13
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I just threw on my Donaldson with the baffle still in....didnt noticed any changes in EGTs really versus from when I had my Aero 4040 muffler on.
EGTs are all good, even when towing pretty heavy....
EGTs are all good, even when towing pretty heavy....
#15
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I had a 30 inch magna-flow and it was to loud when pulling my trailer,put on the Donaldson and the sound level is good maybe a little quite but no way would I put it back on,but as for as performance it seems like it lost a little of the throw you back in the seat feel,exhaust temps did not change