Pro Circuit R304 Shorty Silencer

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Rating 4.86 of 5 (7 Reviews)

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Product Information

Pro Circuit R304 Shorty Silencer
  • Used by practically every PC-equipped motocross professional on the podium today
  • Housing is made of lightweight 6061 T-6 aluminum with brushed finish that is not only stylish but also guards against damage
  • High-strength aluminum rivets and steel Allen head screws on one end for easy disassembly and re-packing
  • Other features include a 304 stainless intake tube
  • Double-walled mounting brackets
  • Exclusive E-glass pillow packing
  • PC logo detailing
  • Titanium/Kevlar silencers feature a carbon-Kevlar shell, titanium tubing and titanium end caps; optimum performance gains while reducing weight

**Note: 85cc muffler has flat end cap not cone like in image.

Note: 12 - 2016 Cobra 50/65 models must use Pro-Circuit head pipe.

Note: 2009 - 2013 Husqvarna WR/CR 125-150 must use Pro-Circuit head pipe.

Click Here for Additional Exhaust Information

  • Item # 6101
  • SKU #
  • Mfr. Part #

FitmentView All

Yamaha Models

  • YZ125 : 2002–2014, 2016
  • YZ250 : 2003–2014, 2016

Product Reviews 1 - 7 of 7

Overall Rating: 4.86 of 5

(7 Reviews)
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What Other Riders Are Saying...

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PC shorty

Great add on. Great boost out of turns. Didn't slide on the pipe all the way but, it's the sound you're looking for.... that's a fact.

Jordan - September 19, 2013

(sanford, NC)

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PC shorty short short

Got this shorty for my stock 2005 yz250. It didn't slide on the pipe all the way but, you know that guy at the track that you like to watch and listen to, that's what you'll be if you get the silencer. It sounds sweet! Not to mention it helped my 2-smoker power out of turns better. It's a cheap upgrade and a great product. Oh yeah, I ordered it on a Monday and it was here on Thursday. Thanks Motorcycle Superstore for all that you do for our sport!!!!

jlegg734 - September 19, 2013

(sanford, nc, NC)

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yz85

best ever, more bottom end for jumps right out of corners.

yamaha77 - June 26, 2012

(boise, ID)

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cr250r

ME LIKE IT

ben - December 19, 2011

(ashburnham, MA)

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yz85o8

Best exhaust ever!! Powerful, extremely loud and sounds great.

sonda s. - October 10, 2011

(moberly, MO)

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Nice!

I had this on my bike when I bought it, so I don’t know about performance gains, it is very loud. Good thing I have neighbors that are young and happy...well, not really.

aaron - April 6, 2009

(pahrump, NV)

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BEST 2 STROKE SILENCER EVER

The pro circuit silencer is the best 2 stroke silencer ever. It is not only fast it also gives your bike a little more snap when you need it, but it also does not blow your ears off. It is not super loud. And it does not take away from the power at all. It is very short so it allows exhaust to flow through easily. It is for sure the fastest 2 stroke silencer on the market.

rm85dude - October 20, 2008

(northford, NB)