high flow mufflers

Check, I think Donaldson also makes an under cab model.

 

Installed the PP quite flow muffler about a month ago on my 06 780 with ISX 550 with single exhaust. Definite improvement in engine spool up (throttle response) slightly deeper sound overall with jakes on or without. The nicest sound spot around 1600 rpm. Gained about .25 mpg Ordered through their website along with a Fleet air filter.

 

Truck I just ordered is coming in with Walker Megaflows on the stacks.

 

Is that a glider kit you have ordered?

 

Yes. 2013 Columbia.

 

Turning away from Cummins. My plans are to do the complete out-of-frame rebuild/conversion to signature 600.

 

Just installed Donaldson M100463 mufflers on my 07 Pete 386 with a C13. Engine seems to spool up quicker and I notice a different sound in the exhaust. The mufflers are not loud at all even with the jake on which does not make a difference to me. I think it is even a little bit quieter than the stock (catylitic) mufflers that were on it. Hopefully I will be able to report an increase in mileage after putting them to the test. A little hard to test mileage today with 30+ mph NW winds.

 

You better get used to it 'cause it's gonna be a hot & windy summer I'm afraid. I've had my m100463's on for about 6 months now & gained about 3/10mpg, it aint much but every little bit helps.

 

May not seem like much, but it paid for those Donaldson's pretty quick. Now its extra change in the pocket from now on!

 

What do they cost? And from where?