For those who want a quieter Q4

Discussion in 'Thumpers' started by Gundy, Jan 7, 2012.

  1. Gundy

    Gundy Long timer

    Joined:
    Nov 6, 2010
    Oddometer:
    1,056
    Location:
    Philly 'burbs
    I installed the quiet insert intended for the powercore 4 today which has a 1-1/8 " opening ( part number 040630) and it is MUCH quieter than the standard Q4. The spark arrestor does need about an inch trimmed off the end to make it fit, but that took about 2 minutes with a hacksaw. You may need to lean the mix up a tad, but its a pretty minor change if anything.


    No more ear plugs needed!
    #1
  2. Adv Grifter

    Adv Grifter on the road o'dreams

    Joined:
    Jan 18, 2010
    Oddometer:
    6,128
    Location:
    Passing ADV Stalkers in California
    I've given up on FMF. After the rivets came out in less than six months on my Ti Q2 and later riding behind my buddy with a new Q4 ... which wasn't quiet enough, IMHO. You're mod will help him, I'll let him know. :clap

    A KTM 950 buddy had his FMF's fall apart too ... within a year, less than 10,000 miles. Rivets all out or loose. Junk. Went back to stock for now.

    Many riders I know have moved away from FMF and are now willing to spend the money for quality: Akropovic, Remus, Scorpion, Leo Vinci ... all make a better product that the Flying Machine Factory do ... who's product's I've used since the early 80's on many dirt bikes. Oh how things change. :cry

    On my DR650, and other singles, finding a good lightweight muffler is hard. I've now gone with the Suzuki GSXR Titanium can, which fits the DR with an expensive mid pipe. Not as light as the FMF (but WAY lighter than stock) but quieter and will last forever. Japanese QUALITY ... something the multi millionare that owns FMF has forgotten about ... apparently.
    #2
  3. Crispy12

    Crispy12 Rocks and Roots

    Joined:
    May 8, 2012
    Oddometer:
    4
    Location:
    Calgary Alberta - Logging Roads and AnimaTrails
    Will the quiet insert intended for the powercore 4 today which has a 1-1/8 " opening ( part number 040630) work on a Q4Ti as well? How did silencer work out longer term? Thanks
    #3