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

$305.99 - $359.95
10% Off - Save up to $40.00

Item #HMF0007

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39 Reviews
4.9 out of 5 stars
5 Star   36 4 Star   2 3 Star   1 2 Star   0 1 Star   0
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All Reviews
Ocala, FL.
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
What you’re looking for

Put it on my 2014 z400 a couple years ago also used the hmf tuner for fuel injection it gave it a noticeable jump in power there is more low to mid range torque helping the acceleration and it sounds awesome. I’ve ran other pipe on multiple bikes and for anything four stroke hmf always has given me the best resaults!

Verified Purchaser
Illinois
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Loud and powerful

This slip on will give your atv more power. It also looks awesome! Installation easy. I installed it in 1 hour. If your looking for power HMF slip on exhaust is it!

Bridgeton, NJ 08302, USA
Durability 5/5 Ease of Installation 4/5 Performance 5/5 Power 5/5 Style 5/5
Sounds great

I have this on my 2011 YFZ450 and it sounds great. It outshines my friends fmf and sounds and looks better

Durability 4/5 Ease of Installation 3/5 Performance 5/5 Power 5/5 Style 5/5

Looks and sounds great, but mounts did not line up I had to drill new holes on the exhaust mounts for the bolts to align. 2012 ltz 400

Verified Purchaser
Otway
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Best purchase ever

The HMF Competition series slip on has been by far the best exhaust i have put on my 2005 400ex i did not have to rejet with the exhaust just brought it in took about 10 minutes to install fired it up it sounds amazing and it also increased overall performance and speed

Verified Purchaser
Illinois, USA
Durability 4/5 Ease of Installation 4/5 Performance 5/5 Power 5/5 Style 4/5
AWESOME PIPE

HMF competition slipon has amazing sound. When I get on throttle it lets a throaty deep roar that simply sounds amazing! I ride a TRX700xx and it was a must for an upgrade.

Pompton Lake, New Jersey, USA
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
HMF

I love this muffle I had it on my old quad and sold it I'm saving up for a new one love these and will always have one on my quad

Verified Purchaser
Croswell
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Best purchase ever

Love th sound of the exhaust and the design.

Verified Purchaser
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5

Verified Purchaser
Olive Branch, MS 38654, USA
Durability 4/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
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!

See 10 More Reviews
43 Questions
Answered:   43
Not Yet:   0
Ricardo03
Q: If i apply a full hmf comp exhaust will i have to retune even if i have fuel injectors and an intake
1 month 26 days ago
JamesGearhead
Top 10
1 month 26 days ago
A: It is not necessary, however to get the maximum potential from the exhaust it is recommended.
Ricardo07
Q: If my quad is fuel injected will i still have to tune it after installing a slip on hmf
2 months 13 days ago
TylerGearhead
Top 10
2 months 13 days ago
A: Typically not as this is just a slip on but you may find that it pops on deceleration.
Kschwen1
Q: Will this slip on fit on HRC header on TRX450R?
1 year 6 months ago
HMF Engineering
1 year 6 months ago
A: In the past, customers have reported that HMF Slip Ons do fit HRC headers. We have no confirmed this ourselves at HMF, but reports from customers show that it should. The diameter on most of our inlets are 1.5", however, it does vary per system/year.
hondatvracer
Q: What would happen if you dont put any inserts in
1 year 9 months ago
HMF Engineering
1 year 9 months ago
A: If the inserts are not ran a large amount of heat is going to be transferred to the turn down. The heat is going to burn off the coating that is applied to the turn down over time.
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 years 3 months ago
MotoSportExpert
MotoSport Staff Expert
2 years 3 months 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
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.
2 years 4 months ago
MotoSportExpert
Expert MotoSport Staff
2 years 4 months ago
A: The HMF Competition Slip-On Exhaust would be noticeably louder than the stock muffler on your 2009 Yamaha Raptor 350.
Atvdude
Q: Do you have to re jet the carb if you get this exhaust
2 years 5 months ago
MotoSportExpert
MotoSport Staff Expert
2 years 5 months 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.
pimp
2 years 5 months ago
A: it is recommended to rejet carb or use efi programmer with fuel injection
Jordie
Q: For a 09 kfx 450r does it come with mounting brackets?
2 years 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
2 years 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?
2 years 5 months ago
MotoSportExpert
MotoSport Staff Expert
2 years 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?
2 years 6 months ago
MotoSportExpert
MotoSport Staff Expert
2 years 6 months ago
A: Jet kits would be sold separately.
HMF Engineering
2 years 6 months ago
A: Tuning parts are sold separately. HMF offers specific Tuning Kits for each exhaust manufactured.
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Fitment
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See Fitments
# Part Numbers
Product Variant Manufacturer Part #
Black 119403606186
Black 141373606186
Black 141403606186
Black 141413606186
Black 119223606186
Black 119243606186
Black 119253606186
Black 119383606186
Black 119393606186
Black 114213606186
Black 126253606186
Black 126263606186
Black 130223706186
Black 136263606186
Black 141333606186
Black 141353606186
Black 141363606186