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HMF Competition Slip-On Exhaust

Retail: $299.99 - $339.99
$296.99 - $305.99
Please Select a ATV:
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Product Description

  • A new round Euro End Cap is just one of the new features of the all new Competition series exhaust.
  • Forged out of 304 Stainless Steel, this end cap gives the exhaust a sleek style, directs exhaust fumes out properly, and adds an incredible sound output.
  • Stainless Steel rivet bands are wrapped around the shell and air riveted in for more durability and security.
  • USFS approved spark arrestor included.
  • Includes a 2 Year Limited Manufacturer's Warranty.
  • Is made of high quality Aluminum, Stainless Steel, or Carbon Kevlar.
  • Packed with high performance glass wool packing.
  • Includes Installation Instructions.
  • Manufactured in the U.S.A.
  • Customer Reviews
  • Ask an Expert
  • Also Offered For
4.9 out of 5 stars
5 star   20
4 star   2
3 star 0
2 star 0
1 star 0
trx700xx08 Location: atlanta,GA
1-10 of 22
Ease of Installation
Top 500 Contributor
Location: Tulsa, OK, USA
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!

Ease of Installation
Location: Reno, NV, USA
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.

Ease of Installation
Verified Purchaser
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.

Location: 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

Location: OK
It is great!

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

Location: Lynnville, Iowa
Great Product

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

Location: 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 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.

Location: 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.

Top 250 Contributor

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

Location: 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.

1-10 of 22
Total Questions (20)
Questions with answers:
Questions without answers:
CrazyJay Location: Ontario, Canada
1-10 of 20
CrazyJay 9 days 15 hours ago Location: Ontario, Canada
Back pressure?
Hi i have a Yamaha warrior 350. I was wondering does this exhaust have the same amount of back presser as the stock exhaust?
honda450r 15 days ago Location: Pennsylvania, USA
Can you get this exhaust without the blue on it?
AtvKid99 25 days ago Location: Ohio, USA
Would it fit 2012 poaris scrambler 500 4x4 ?
Expert MotoSport Staff
25 days ago Location: Portland, OR, USA
Unfortunately, No, this exhaust is not made to fit your Polaris Scrambler 500 4x4.
Cloyd 26 days ago
Is this the round or the elliptical exhaust?
Expert MotoSport Staff
20 days ago Location: Portland, OR, USA
This would be the round style exhaust can.
winters79 2 months 22 days ago Location: Superior, WI, USA
Would I have to buy a fuel programer with this exhaust, and if so which one would work the best?
Expert MotoSport Staff
2 months 19 days ago Location: Portland, OR, USA
Usually when just going to a slip on exhaust you would only need to make minor changes to the fuel mapping if any. Getting a Fuel Programmer would be a good idea as it would help tune your fuel system for the better performance. With this exhaust I would recommend looking at the HMF Dobeck EFI Tuning Box.
BossRider12249 Over 7 months ago
How many exhaust tips come with hmf compitition series?
MotoSport Staff
Over 6 months ago Location: Portland, OR, USA
The HMF Competition exhaust only comes with one end cap but includes 3 inserts for varying levels of power output and dB level.
Logan Over 9 months ago Location: Cody, wy
I hate to sound like a noob but what does this slip on? And will it work on my can am ds 450?
MotoSport Staff
Over 8 months ago Location: Portland, OR, USA
This would be a replacement muffler that slips on to the stock head pipe. It is designed to replace the stock mufflers that are restrictive and heavy. We do have these available for the Can-Am DS450's. Please make sure you profile your ATV correctly when purchasing as these are model specific.
Johnmike4 Over 10 months ago Location: Kentucky
Which tip is the quietest? Out of the 3?
MotoSport Staff
Over 10 months ago Location: Portland, OR, USA
Each of the HMF exhuasts will be similar in the dB level. One will not be noticeably quieter than the other. Each of the systems do accept HMF's quiet core insert though to help reduce the dB level 8-10 points. The quiet core is purchased seperately.
Top 500 Contributor
Over 10 months ago Location: Tulsa, OK, USA
The First one is the quietest of the three!
Rjruva 1 year 1 month ago Location: California, USA
What jet kit should i use for this pipe with a raptor 660?
MotoSport Staff
1 year 1 month ago Location: Portland, OR, USA
Any jetting kit will work out great. The "kits" all come with a range of different sizes and a chart to zero in on the jetting specifications that will work best for your needs. Just make sure you select the correct model information when ordering or adding to your cart.
Top 500 Contributor
1 year 1 month ago Location: Tulsa, OK, USA
Power Commander 5 is a great product to have together.
crigger Over 3 years ago
on my 07 trx250ex there is the stock exhaust and there is litttle bit if pipe that comes out thats connected to the exhaust with the HMF exaust does it come with that little piece of pipe or do i have to buy thta extra?
Top 500 Contributor
Over 10 months ago Location: Tulsa, OK, USA
You should be able to still use that same piece with the new exhaust. Its a plug n play meaning there is no modification to do to it
1-10 of 20


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