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  1. Grizzly Engine & Transmission
    Just bought a used 2011 Grizzly 550 EPS 4WD. Previous owner installed a HMF Penland Pro series exhaust on it and the HMF optimizer. It is way too loud for me - I'm trying to do yard work and not annoy the neighbors or make my family deaf. It already has the "Quiet Core" baffle installed and it...
  2. Grizzly Engine & Transmission
    Hi all I'm struggling with hmf optimizer settings. Bike: 2017 grizzly 700 SE Mods: hmf qs slip on silencer, k&n airfilter, hmf optimizer, 27in zillas Milage: 560 ****Does anyone have same setup that could give me settings for 2017? Issues: 1. At times when I let off gas, the trans brake...
  3. Grizzly Dyno/Tuning
    Hi all I'm struggling with hmf optimizer settings. Bike: 2017 grizzly 700 SE Mods: hmf qs slip on silencer, k&n airfilter, hmf optimizer, 27in zillas Milage: 560 ****Does anyone have same setup that could give me settings for 2017? Issues: 1. At times when I let off gas, the trans brake...
  4. Grizzly Talk
    gr rules So I've been looking into putting a pipe on the grizz. I got a 2012 700 and I just did some clutch work to it. I did some research and I know you have to have a fuel controller with any pipe and at that point you might as well get everything you can out of it and do the air intake as...
  5. Parts For Sale
    I am selling my HMF Penland Pro & HMF Optimizer. This should work with the '09 and up 550's & 700's. Have about 55-60hrs on the pipe. It comes with a torque range modifier and spark arrestor which are already installed. You can remove them if you want. $300
  6. Parts For Sale
    I decided to sell the pipe along with it. See my other post HERE
  7. New Member Introductions
    hey im new here but im just wondering where i could get maybe a used hmf optimizer for grizzly 700 2011 if anyone has one or knows where to get one a little cheaper let me know
  8. Grizzly Talk
    Anyone have a head pipe laying around for hmf? I'll buy it.
  9. Parts For Sale
    I have a used HMF optimizer. I bought it from another member but didn't end up needing it. All the wires and paperwork are there. I'm thinking $125 shipped. Make me an offer.
  10. Rage Customs
    Hey guys we have a newly used hmf optimizer for sale. Customer bought it at mud nats and decided that the hmf pipe he had purchased was too loud for his taste. Had it on his bike for less than 4 hrs. The pipe has already been sold but we still have the optimizer. Comes in original box with...
  11. Grizzly Talk
    Just scored a decent deal on a HMF exhaust on Ebay. Gotta love it!! Cant wait to put that bad boy on....
  12. Grizzly Tech Tips
    hey every one got some questions about jetting and exhausts im going to get a performance hmf exhaust but what is the best jet kit and should i get a jet kit or a optimizer also a little of topic but since one of my family members broke my contour gps camera i am in the market for a new one...
  13. Parts For Sale
    I have a HMF exhaust with brand new packing and fuel optimizer. Both came off my grizzly. The HMF has the quiet core. It is straight with no dents. The end cap has a few knicks in it from removing the end to repack it. The rubber grommet is torn a little but it still tightens down good and...
  14. Industry News
    The Can Am Renegade 1000 features a 976cc V-Twin motor with a redesigned chassis, improved Read More at http://offroadhub.com...
  15. Industry News
    Not to be outdone by it's sportier brother, the Renegade, the Outlander 1000 also received Read More at http://offroadhub.com...
  16. Grizzly Dyno/Tuning
    I have installed the optimizer first tried the base setting hmf suggest which is 3,3,4 but it would smoke black when I rev it up. So I changed it to 1.5,1.5,2 and it still smokes but only at high rpm should I only change the red led's on the controller now since that's the full throttle setting...
  17. Parts For Sale
    I have a good condition hmf exhaust with the removable hmf silencer I just want a stock muffler and 70.00 Pm me if interested. Thanks
  18. Industry News
    We love the V-Twin Power of the Kawasaki Brute Force 750.* Now, legendary performance exhaust manufacturer HMF has just released a new lineup up exhausts for the 2012 Brute Force 750 ATV. Check out what HMF has to say about their new lineup. The muscular Brute Force 750 4×4 ATV picked up a ton...
  19. Looking to Buy
    im looking for an hmf for a grizzly 660 ready to pay if anyone wants to make a lil money:boxing:
  20. Grizzly Engine & Transmission
    Who has a HMF utility on their 660? I just put it on and the heat from the mid-pipe is extreme. I had to wrap the top of the frame member above the pipe with heat reflective tape because it was getting too hot to touch. Before anyone asks it's not running lean and jetted properly. It gets hot...
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