HMF Competition Slip-On Exhaust

HMF Competition Slip-On Exhaust
HMF Competition Slip-On Exhaust

$305.99 - $314.99
10% Off - Save up to $35.00

  • Description
  • 29 Reviews
  • 40 Questions
  • Fitment
Description Item #HMF0007

Arguably the highest performing after-market exhaust on the market, the HMF Competition Series is a pure blend between optimized performance and versatility. The secret to it's power lies within the Trimax Core. This unique triangular core accepts specially designed exhaust inserts that provide the rider the ability to quickly change the power and sound according to the current riding conditions

  • Designed and tested for dirt bikes and ATVs.
  • The Competition Series distributes power evenly throughout the entire RPM range.
  • The Competition Series uses a mechanical core to control exhaust pulses and set power levels where they're needed.
  • The exhaust shell is made of T6061 Aluminum that weighs substantially less than stock.
  • Included with every exhaust are three removable inserts; the Trimax Core technology features three levels of power and sound, allowing you to dictate the type of power and sound you need, when you need it.
    • Trimax Stage 1: Uses an insert that restricts sound levels extensively yet produces industry leading power at the approved dB level.
    • Trimax Stage 2: Uses a different sound-altering insert that partially lowers sound levels without losing the power increase gained in Stage 3.
    • Trimax Stage 3: Acts as an unrestricted core producing high dB levels with industry leading power throughout the entire RPM range.
  • Features a black powder coated exhaust shell, stainless euro end cap, rivet bands, and the HMF team sticker for a completely upgraded look.
  • Packed with high-performance glass wool packing.
  • Includes installation instructions.
  • Includes a USFS-Approved Spark Arrestor.
  • Includes a 2 Year Limited Manufacturer's Warranty.
  • Manufactured in the U.S.A.

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29 Reviews
4.9 out of 5 stars
5 Star   30 4 Star   2 3 Star   0 2 Star   0 1 Star   0
Jtucky
Verified Purchaser
Croswell
Durability   Ease of Installation   Performance   Power   Style  
Best purchase ever

Love th sound of the exhaust and the design.

dtc2722
Verified Purchaser
Olive Branch, MS 38654, USA
Durability   Ease of Installation   Performance   Power   Style  
The HMF slip on - Awesome!

The sound builds confidence inside of you and before you know it your in love with your new exhaust. No matter which baffle I choose for the end cap they all sound good. It does make more power you can tell a difference. Thanks HMF!

HMF Competition Slip-On Exhaust
Keiran
Amherst, NH 03031, USA
HMF Exhaust

If you want power, this exhaust is for you! Super loud, it can be heard from a mile away. It made my yfz mean. Also it allows my yfz to pack a punch compared to the stock exhaust. Way to go HMF for a great product!

Redracer
Verified Purchaser
Greenville, Pa
Durability   Ease of Installation   Performance   Power   Style  
Great purchase for my son

My son wanted this exhaust for his Honda 4 wheeler. Was so excited when it came and installed quickly. Enjoyed experimenting with the
different pieces that can switch out to change sounds. Looks great.

Adam
Verified Purchaser
Gretna, VA 24557, USA
Ease of Installation   Performance   Power   Style  
It is alive

Switching from a stock pipe to an aftermarket pipe is a must for any atv. i have noticable horsepower and torque. and it sounds and looks awesome.

Ricky
Verified Purchaser
Billerica, MA, USA
Durability   Ease of Installation   Performance   Power   Style  
Very Easy installation and extremely loud! :)

This HMF competition exhaust was very easy to install on my 2013 YFZ450. Jetting was easy as I only had to move a washer on the need as per the HMF instructions. This exhaust is EXTREMELY LOUD which is what I wanted and has a great tone. Very deep throaty tone. I would defiantly buy this if your looking for a loud and great sounding exhaust.

muscles
Durability   Ease of Installation   Performance   Power   Style  
THE BEAST IS ALIVE!!!

I would recommend this pipe to ANYONE!!! The sound is great very throaty, it looks amazing, and the power gain you get from this pipe is unbelievable. If your looking for a new exhaust look no further and order this one!!!!!!

HMF Competition Slip-On Exhaust
JohnQuad212
Martinez, Ca
Durability   Ease of Installation   Performance   Power   Style  
Good pipe

I like the sound it makes and extra power it gives. There is a noticeable power difference between the inserts. I had a little snag with installation. The doesn't tuck in under my rear fender all the way like the stock pipe did. I had to re work it some. This was mounted on a 2014 Yamaha Yfz450 r . Overall, I'm happy with it.

FOOLIO
Top 500 Contributor
Tulsa, OK, USA
Durability   Ease of Installation   Performance   Power   Style  
HMF Exhaust is a great product must buy!!!

Installation took only 20 minutes and shipping was really fast. It makes my 07 raptor 700 faster, better, and meaner looking. And with the options of 3 different style tips you can ride at ur type of riding anywhere. I reccomend it to everyone!

FrankTheTank
Reno, NV, USA
Durability   Ease of Installation   Performance   Power   Style  
Awesome pipe

if you want a loud slip on for your ride this is it, the bottom end power was increased ALOT. not too much of a gain on top but still a great slip on, took ten minutes to install. excellent pipe.

bbm0731
Verified Purchaser
Durability   Ease of Installation   Performance   Power   Style  
Awesome product

I put this on my 2003 ltz400, Gave it alot more power, Sounds great! comes with three exhaust tips to put on. would definitely recommend this to anyone! ships fast to.

ty450
Bend,OR
Well worth the money

The hmf made the bike sound a lot better and it give her a little more get up and go I would recommend buying this to anyone looking for a pipe

ATVMom
OK
It is great!

Bought to replace stock pipe and it improved performance and sounds amazing.

rydog69
Lynnville, Iowa
Great Product

Great performance, sound great and very loud. Comes with three different tips. Looks good.

Polarisrider411
Bay City, Michigan

I purchased the pipe for a 2007 Polaris Predator. I was very excited when i recieved this. When i recieved this their was a page missing in the instructions so i had to go to the hmf website to get the other page...no big deal. When i tried to install it, the opening on the mid pipe did not fit over the stock header. We had to remove a bushing between the stock midpipe and header, then took the pipe to a local shop to have the opening on the hmf mid pipe wider. After that it did fit and bolted on easily. It does sound nice, and the pipe aint that loud. i was expecting more. It felt like it gave it more power, but not a ton. I would reccomend this pipe if you dont mind putting in a little TLC to get it to fit.

trx700xx08
atlanta,GA
Great exhaust

Sounds great on my 08 trx700xx. everything bolted right in place, and was very easy to install. arrived the exact time motosport said it would and had all parts.

crf150rracer
Top 250 Contributor
Awesome

I sold some of my bikes to get a trx 450r and i wanted a pipe so i went with hmf and this pipe IS awesome i can tell huge power increase and sounds awesome

Wong
Woodside, NY
Worth every penny.

I bought this for the 400ex. After I bolted it on and properly jet it. My ATV was ripping, there was definitely an increase in power, It would accelerate faster almost ripping my arms off. Overall the product looked awesome, I just wished they put a metal label instead of the sticker, but it still looks awesome. The finish is really top notch. I just had a problem with bolting it on, I had to drill another hole on the bracket to make it fit on my ATV other than that there was no problem. This exhaust also doesn't need a gasket, just tighten the T clamp and you're good to go. There were also 2 other inserts you can use, mine had the largest insert already bolted for maximum power. If you have sensitive neighbors I suggest you use the other inserts because this thing is loud! You'll be expecting a lot of them knocking at your door.

ruffRider27

This slip on exhaust is just...AMAZING! Gives my 400ex much better throttle response, and wow does it scream. This loud exhaust was worth every penny.

HUGEJOHNSON
Durability   Ease of Installation   Performance   Power   Style  
Night and day...

i recently installed this slip on with a uni air filter, sparks advanced timing key, and a dynojet kit... this really woke my 2007 400ex up. i didn't expect this much power gain. and the pipe sounds amazing... riding is much funner now...

1-20 of 29

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40 Questions
Answered:   39
Not Yet:   1
cumminsguy95
Location: New York, NY, USA
Q: Is this exhaust oval shaped for a 2008 raptor 250?
9 days 14 hours ago
i see this hmf exhaust for a 08 raptor comes oval and circular would like to know if this is oval shaped? thanks
York400ex
Q: If I bought this for my 07 honda trx 400ex all stock do I have to get anything new for it or can I just slip it on?
2 months 27 days ago
MotoSportExpert
MotoSport Staff Expert
2 months 26 days ago
A: Normally when installing a slip-on only minor jetting changes are needed, if any at all. If your ATV is currently jetted properly you will likely not have to make any changes after installing this slip-on. I would recommend installing the exhaust and riding the ATV to see how it is running then tuning your carburetor from there if necessary.
raptor350
Location: ny
Q: Will this be a loud exaust for my 09 raptor 350? i want something to really open it up and make it really loud.?
3 months 24 days ago
MotoSportExpert
Expert MotoSport Staff
3 months 24 days ago
A: The HMF Competition Slip-On Exhaust would be noticeably louder than the stock muffler on your 2009 Yamaha Raptor 350.
Atvdude
Location: Croswell
Q: Do you have to re jet the carb if you get this exhaust?
4 months 13 days ago
MotoSportExpert
MotoSport Staff Expert
4 months 8 days ago
A: Normally when installing a slip-on only minor jetting changes are needed, if any at all. If your bike is currently jetted properly you will likely not have to make any changes after installing this slip-on. I would recommend installing the exhaust and riding the bike to see how it is running then tuning your carburetor from there if necessary.
Jordie
Location: Elko Nv
Q: For a 09 kfx 450r does it come with mounting brackets?
Over 5 months ago
When I took the ugly stock pipe off the quad the original mounting stuff is welded to the pipe so does this one come with any brackets at all?
MotoSportExpert
Expert MotoSport Staff
Over 5 months ago
A: The HMF Competition Slip-On Exhaust would include mounting brackets (if needed) to mount to the stock mounting points.
Lilbob22
Q: Will this slip on fit a 2014 trx450er exactly?
Over 5 months ago
MotoSportExpert
MotoSport Staff Expert
Over 5 months ago
A: Yes. Just be sure to correctly select the Year/Make/Model of your ATV before ordering so we can be sure to send you the correct exhaust for your ATV. Also, feel free to give us a call at 888-676-8853 and we would be happy to help you out with your order.
JayYFZ
Q: Does this exhaused include a jet kit or is it sold sepparat?
Over 5 months ago
MotoSportExpert
Expert MotoSport Staff
Over 5 months ago
A: Jet kits would be sold separately.
Javster37
Q: Will the fmf powerbomb header fit with the hmf competition slip on exhaust?
Over 9 months ago
MotoSportExpert
MotoSport Staff Expert
Over 9 months ago
A: FMF headers, whether it be the PowerBomb or the MegaBomb, are fitted to match an FMF series muffler. We do not recommend or guarantee you try to match it to a stock muffle or other brand muffler.
ikey
Q: Does it come with the stuff need to mount it?
Over 10 months ago
and does it fit the 2014 ltz 400 exactly
MotoSportExpert
Expert MotoSport Staff
Over 10 months ago
A: Yes the HMF Competition Slip-On Exhaust will fit your 2014 Suzuki LTZ400. Just be sure to correctly select the Year/Make/Model of your ATV before ordering so we can be sure to send you the correct exhaust for your ATV. It does not come with hardware, you would need to use the stock hardware. Also, feel free to give us a call at 888-676-8853 and we would be happy to help you out with your order.
Ric22
Q: I want to buy the hmf competition series slip on. could i use it without rejetting, remapping with a fuel programer? can i just slip it on and enjoyit?
1 year ago
thank you Ricardo Garcia
MotoSportExpert
MotoSport Staff Expert
1 year ago
A: Normally when installing a slip-on only minor jetting changes are needed, if any at all. If your bike is currently jetted properly you will likely not have to make any changes after installing this slip-on. I would recommend installing the exhaust and riding the bike to see how it is running then tuning your carburetor from there if necessary.
1-10 of 40

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Fitment
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