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HMF Racing Competition Series Silencer
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HMF Racing Competition Series Silencer

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  • Designed and tested for dirt bikes and ATVs.
  • 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 1 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.

Loud

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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0 of 0 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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0 of 0 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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0 of 0 people found this review helpful.

Best Exhaust Ever!!

Comments On Jul 05, 2011:I had been searching for an exhaust for my Trx450r for about 2 months!!! After looking at hundreds of reviews of many different types of exhaust,, I finally found the right one!!! It sounds clean and is loud ,with stage 3 end cap on, and gave a great power boost,,and I just bought the slip on!!! The quality is great!!! Installation is very easy as well!! 5 star product!! Price is reasonable too!!

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0 of 0 people found this review helpful.

Assembled quick, sounds great and can feel the HP

Comments On Jun 16, 2011:I have had this installed for about a week now and i love it! I havent tried the other 2 stages, but it comes with nothing but the spark arrestor in it. Mounted pretty easily and lined up about perfect! I would advise the HMF Optimizer as well if this pipe is going on an EFI. If not there will be a slight bog but nothing giving throttle cant fix. On a 2010 YFZ 450X

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