W900 muffler ideas

Discussion in 'Kenworth Forum' started by sparky88, Mar 15, 2015.

  1. sparky88

    sparky88 Light Load Member

    143
    31
    Jan 22, 2014
    oswego, ny
    0
    So as I'm upgrading my truck exhaust I'm looking at muffler ideas. I want the jakes louder but don't want the truck to be too loud so straights are out of the question. I'm looking at a Pittsburgh shorty or a grand rock muffler. Just the 2 options I have found without getting too complicated. I know the gr is 222 and the pp is over 500 iirc. Question is does anyone have experience with either? Looking for thoughts on mileage and power gain also increased noise level from stock. Any inputs would be awesome
     
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  3. king Q

    king Q Road Train Member

    2,868
    3,031
    Jul 26, 2010
    Johannesburg sa
    0
    Donaldson M100463 sounds like what you are looking for and you can get them for a good price.
     
  4. sparky88

    sparky88 Light Load Member

    143
    31
    Jan 22, 2014
    oswego, ny
    0
    I would have to modify the exhaust. Looking more for an easy driveway drop in since I have the reverse flow muffler
     
  5. MJ1657

    MJ1657 Road Train Member

    7,521
    50,150
    Jan 28, 2012
    Isanti, MN
    0
    I had a pp muffler and a resonator on mine. The pp muffler cracked so I replaced it with a piece of straight pipe. Its a touch louder on accel and on the jake but I can't tell the difference driving down the road.

    If I remember correctly the junk pp muffler was around $600. A piece of straight pipe was around $100.
     
  6. sparky88

    sparky88 Light Load Member

    143
    31
    Jan 22, 2014
    oswego, ny
    0
    How big is the resonator? Maybe worst case I just have the shop cut the muffler off mine and put in a resonator or that Donaldson. Was just kinda hoping to do it myself. KW makes it difficult with that u shaped muffler
     
  7. snowwy

    snowwy Road Train Member

    19,722
    12,268
    Jul 6, 2009
    0
    That u shaped muffler really wasn't diffixult. I installed my own donaldson.

    There's no mileage gain. The only difference between stock and donaldson is the length.

    Inside. It's all the same.
     
  8. sparky88

    sparky88 Light Load Member

    143
    31
    Jan 22, 2014
    oswego, ny
    0
    What hat about the sound difference?


     
  9. MJ1657

    MJ1657 Road Train Member

    7,521
    50,150
    Jan 28, 2012
    Isanti, MN
    0
    I can't remember. Ill crawl under there tonight and take a look and try to snap a pic.

    Edit. Its 30" long.
     
    Last edited: Mar 16, 2015
    sparky88 Thanks this.
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.