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HMF Racing Competition Series Silencer
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HMF Racing Competition Series Silencer

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  • The Trimax Core technology features 3 levels of power and sound, allowing you to dictate the type of power and sound you need, when you need it.
  • Included with every exhaust are 2 removable inserts, each of which effect the sound and power in different ways, giving the rider complete control.
  • Stage 1 Uses an insert that restricts sound levels extensively yet produces industry leading power at the approved dB level.
  • Stage 2 Uses a different sound-altering insert that partially lowers sound levels without losing the power increase gained in Stage 3.
  • 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.
  • Inlcudes a USFS Approved Spark Arrester.
  • 2 Year Limited Manufacturer’s Warranty.

HMF Racing Competition Series Silencer Reviews

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0 of 0 people found this review helpful.

2006 Raptor 700r

Comments On Apr 15, 2015:Ok i don't have the exhaust but want to know if i can just slip them on or will i need new pipes all the way through?

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0 of 0 people found this review helpful.

Don't forget the jets...

Comments On Mar 11, 2015:All in all a great product. Plan on jetting your carb and tuning it. I advise getting your jets if you purchase it or you'll have to wait to ride and order them. I purchased the slip on And used it on my stock pipe, it has some leaks at the connections and is a very common problem i also suggest you research this on the web before you commit, there are a few fixes if you cannot afford the full system . Too sum it up it sounds great ,gives you more pull and definitely will piss off you neighbors on stage 3....and Mounted easily , The reason I only gave it four stars in the leaks and the clamps that come with the kit don't do there job.

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0 of 1 people found this review helpful.

Stock header only?

Comments On Feb 06, 2015:I bought a quad with a full HMF exhaust, header, mid pipe and silencer. The silencer is shot. Would this fit on the mid pipe or does it have to be the stock system?

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1 of 1 people found this review helpful.


Comments On Apr 11, 2014:it only fits the stock head pipe. more info would have been nice. It didn't say that it was a slip-on.

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1 of 1 people found this review helpful.

Awesome exhaust

Comments On Dec 18, 2013:Increased everything I need on my 400ex. The looks, the power and the sound. I love that I can regulate the noise output. Spark filter is easy to take out and clean.

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1 of 2 people found this review helpful.

slip on or full ???

Comments On Oct 20, 2012:is this just a slip on exhaust or full.??
TECH NOTE: This is just a slip-om muffler.

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1 of 1 people found this review helpful.


Comments On Jun 04, 2012:Have it on my 06 raptor 700 stage 3 is loud runs great with the power commander..

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1 of 2 people found this review helpful.

Nice and loud

Comments On Sep 27, 2011:This exhaust sounds wicked and now my 700xx pulls all the way through the powerband

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1 of 1 people found this review helpful.

2008 Honda TRX450ER

Comments On Sep 26, 2011:I cant believe the power gain i got out of this exhaust!! HMF pipe are very tough and built out of stainless steel and aluminum parts. BUY IT NOW!!

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2 of 2 people found this review helpful.

, Stop thinking, just buy it.

Comments On Jul 31, 2011: I just bought a bone stock 2007 RAPTOR 700 SE. I rode the bike at Mountain View WYO. (BADLANDS). It ran good but I'd heared from several people who ride Little Sahara that I could make it so much more. I purchased this pipe and installation was easy, a perfect fit. I also purchased a K&N filter kit at the same time. I used my stock airbox and added several 1" holes in the lid. WOW!!! Trust me, the difference is huge. It is very loud with the big tip. I run the mid tip with the spark arrestor for daily riding, still loud and very big HP increase.

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