Pro Circuit Factory 304 Silencer - 2-Stroke

Pro Circuit Factory 304 Silencer - 2-Stroke
Pro Circuit Factory 304 Silencer - 2-Stroke

$121.99 - $134.95

  • Description
  • 47 Reviews
  • 40 Questions
  • Fitment
Description Item #PRC001D

With a clear and stylish design, the 304 Silencer will make a lasting impression. The slightly longer body offers reduced noise output when compared to the R-304. Its perfectly constructed lightweight cylindrical canister, combined with the brushed aluminum body and stainless steel inlet tube and end cap, give you a silencer that looks as good as it performs and ensure that a truly unique riding experience is in store for you. The 304 silencer is recommended for most two-stroke applications.

  • Longer body design helps to reduce noise output.
  • 6061-T6 brushed aluminum silencer body.
  • Stainless steel end-cap.
  • TIG and MIG welded for strength and durability.
  • Double-walled mounting bracket(s).
  • Allen head screws ensure easy repacking when needed for extended product life.
  • Made in the U.S.A.

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47 Reviews
4.8 out of 5 stars
5 Star   40 4 Star   9 3 Star   0 2 Star   0 1 Star   0
Tclaxton
Verified Purchaser
Torrance
Durability   Ease of Installation   Performance   Power   Style  
Great sound

Exhaust sounds awesome on my kx500. Could also feel a little more power in the bottom end!

Pro Circuit Factory 304 Silencer - 2-Stroke
whiteline
Verified Purchaser
Geneva, Ohio
Ease of Installation   Performance   Power   Style  
Exactly as I expected...

Form, fit and finish is of a quality that I'd expect. I can't say anything bad for the silencer. It did just as I wanted, I was running a shorty silencer, but with my SXS 300 kit it was a little to punchy for my tastes. The longer silencer moved the powerband higher into the RPM range and the hit was a tad softer. It works for me.

Fitted on: 2009 KTM 250SX

hondaguy
Verified Purchaser
Michigan, USA
Durability   Ease of Installation   Performance   Power   Style  
Good product

pro-circuit products have been on my race bikes for 20 years they hold up well look good and perform well . very happy with pro-circuit.

Tomas
Houston, TX, USA
Durability   Ease of Installation   Performance   Power   Style  
Pro Circuit 304

First silencer I ever bought that actually improved performance in conjunction with a pro circuit platinum 2 pipe. Power delivery better across the board. Buy it !

peter
Top 50 Contributor
New York, NY, USA
Durability   Ease of Installation   Performance   Power   Style  
Rips

long live the 2 stroke! pipe rips and stays looking new for a while- cover it with WD-40 when you clean the bike.

MXWarrior
Top 100 Contributor
Durability   Ease of Installation   Performance   Power   Style  
Good silencer for a 125

Was great paired with e Pro circuit spark arrest or, and was very good power booster, plus looks good on the bike, and seems to be okay durability, but not as good as FMF. By far one of the best power boosters in terms of 2 stroke pipes, I've ever used.

hayden
Wellington, FL, USA
Durability   Ease of Installation   Performance   Power   Style  
GREAT SILENCER!!!!!!!

I bought this silencer because it was rated really good and the price was great. It is not as loud as i was hoping on my kx 85 aboutthe same as stock but really makes a difference in power

LukeMX8
Verified Purchaser
Fernley, NV
Durability   Ease of Installation   Performance   Power   Style  
PC Factory 304 - 92' Noleen Yamaha YZ250

The 304 really lets all my horses out, top and bottom end show significant power increase. Had a spark arrest on before. Very snappy on the pipe, no back pressure lost. No change in spark plug wear. Hidden behind the number plate, very neat to the bike. SOUNDS SIKK!!!

Pro Circuit Factory 304 Silencer - 2-Stroke
Pro Circuit Factory 304 Silencer - 2-Stroke
clazer
Chicago, IL
Durability   Ease of Installation   Performance   Power   Style  
Best sounding banshee silencer

i bought these to pair with a set of shearer inframe drag pipes they fit like a glove and took the banshees crackling sound away and gave her a extraordinary exhaust note in between a 4 stroke and a chainsaw sounds like an angels soung to my ears.

beastandtheharlet
Verified Purchaser
muncy pa
Durability   Ease of Installation   Performance   Power   Style  

good silencer sounds awsome with the pro circuit works header

crazyspider84
Top 250 Contributor Verified Purchaser
Durability   Ease of Installation   Performance   Power   Style  
Good Tip

Sound good and good price

longlivethe2stroke
Verified Purchaser
new hampton , NY
Durability   Ease of Installation   Performance   Power   Style  
Good purchase

it is noticeably quieter , but dose not take away any preformane, all around good pipe

KawasakiKX85
Shelby, NC
Pro circuit 304

This looks like its going to be a good silencer, it was a little hard to put on my 2007 kx 85 you have to force it some it was off a little bit. Havent got to ride it yet or start it up but im going to tommorw. But by hard to put on i mean you have to push real hard and it pushes the rubber muffler joint thing some and it goes back a little extra.

kx 85 with PC 304 silencer
kawasakiking1
Billerica MA
Durability   Ease of Installation   Performance   Power   Style  
Great purchace, better sound, more power

this silincer was a great buy, it quieted my bike down a bit and made it sound awesome, and i didnt even need to rejet my kx 80, there was a major power increase throught low to high rpm's the only problem was that the silincer didnt fit in the stock position and it wouldn't let me put my side pannel on right, and i had to modify the side pannel to get the new silincer to fit in but it looks alright, the silincer didn't look like it does in the picture but whatever, overall a great buy

mxslick
Top 250 Contributor
Hawthorne, CA
Durability   Ease of Installation   Performance   Power   Style  
Super Silencer!!

Bought this with the Platinum Series Pipe for my 2000 YZ 250. It bolted right on, fit perfectly and performs great. I love the way this make s the bike sound! It is very easy to re-pack and the finish is durable. Big thumbs up!! See my review on the Platinum Series pipe for more...

hondacr
melrose, NY
Durability   Ease of Installation   Performance   Power   Style  
Great buy

i would recamend this pipe 2 any one who likes power, i just put it om my 2006 cr85 and it ripes even more, great for trails and track i use it for both great buy.

Pro Circuit Factory 304 Silencer - 2-Stroke
0987654321
north bend washington
Durability   Ease of Installation   Performance   Power   Style  
Best purchase ever

great

hondadude
raleigh, NC
Durability   Ease of Installation   Performance   Power   Style  
Awesome

put it on a 03 ktm 125, sounds amazzzzing, and adds lots of top end, great pipe, for a great price

Pro Circuit Factory 304 Silencer - 2-Stroke
reddemon
chicago,il
Durability   Ease of Installation   Performance   Power   Style  
Amazing

i just instslled this on my 2002 kx 85 and it is amazing

justin188
pioneer,ca
Durability   Ease of Installation   Performance   Power   Style  

i have this on my 2002 kx85 and it sounds awsome :)

1-20 of 47

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40 Questions
Answered:   39
Not Yet:   1
max12
Location: Houston, TX, USA
Q: Is there a spark arrestor on a 304?
21 days ago
MotoSportExpert
MotoSport Staff Expert
18 days ago
A: No the Pro Circuit Factory 304 Silencer would not have a spark arrestor.
Vintagerider
Q: Will this fit on my 1988 Cr125r Fmf gold series Header pipe?
28 days ago
DT12
Q: 304 or R-304 shorty?
1 month 27 days ago
I ride mostly in the desert with a 2015 KTM 300 EXC and would like to know which you recommend? I realise the R-304 will improve bottom end and the 304 top end, but will the R-304 take off a lot of the top end power? Really like the sound the R-304 makes. The pipe is the standard OEM one. Thanks
Tclaxton
1 month 7 days ago Location: Torrance ca
A: On my yz250 i could tell a big difference on the top end from the r304 and the 304. With the r304 my bike didnt rev out as high. So really just depends on how you ride your bike.
DRDRACING
Q: Is there a rubber sleeve that connects the silencer to the pipe or is it metal to metal fit?
3 months 2 days ago
MotoSportExpert
Expert MotoSport Staff
3 months 2 days ago
A: The rubber connector can be found in our OEM section for your bike here:
http://www.motosport.com/dirtbike/oem-parts/yamaha/2008/yz125/exhaust

Part# 4JY-14615-00-00
rory
Q: 1994 yz250?
4 months 2 days ago
Will this fit my 1994 yz250 with an FMF Fatty expansion chamber?
MotoSportExpert
MotoSport Staff Expert
4 months 2 days ago
A: Fitment can not be guaranteed with other manufactures although you should not have any issues. Just be sure to correctly select the Year/Make/Model of your bike before ordering so we can be sure to send you the correct silencer for your bike. Also, feel free to give us a call at 888-676-8853 and we would be happy to help you out with your order.
dietz
Q: Does it fit a 1995 rm 125?
Over 5 months ago
MotoSportExpert
Expert MotoSport Staff
Over 5 months ago
A: Yes the Pro Circuit Factory 304 Silencer fits your 1995 Suzuki RM125. Just be sure to correctly select the Year/Make/Model of your bike before ordering so we can be sure to send you the correct silencer for your bike. Also, feel free to give us a call at 888-676-8853 and we would be happy to help you out with your order.
John
Q: Will this silencer fit my 2005 Suzuki rm85?
Over 7 months ago
MotoSportExpert
MotoSport Staff Expert
Over 6 months ago
A: If it is available through one of our suppliers, we would be happy to order it for you. Please contact one of our sales professionals to inquire about special orders and availability.
Dirt Bike: 1-888-676-8853
Rider155
Q: Will this silencer give me more top end or bottom end power and is it worth buying?
Over 8 months ago
MotoSportExpert
Expert MotoSport Staff
Over 8 months ago
A: The Pro Circuit Factory 304 Silencer Improves top-end power. The Pro Circuit R 304 Shorty Silencer offers added bottom end.
Rider155
Q: Would these silencers fit correctly on a 2013 kx85 and would you need to change the jet setting or rejet also would it fit onto the stock pipe?
Over 8 months ago
MotoSportExpert
Expert MotoSport Staff
Over 8 months ago
A: Just be sure to correctly select the Year/Make/Model of your bike before ordering so we can be sure to send you the correct silencer for your bike. You should not need to re-jet when changing silencers. Also, feel free to give us a call at 888-676-8853 and we would be happy to help you out with your order.
Mohawkman2
Location: Iowa
Q: Weight?
1 year 7 months ago
What is the weight? 3.1pounds?
MotoSportExpert
MotoSport Staff Expert
1 year 7 months ago
A: Approximate weight of the Pro Circuit Factory 304 Silencer for your 2005 KDX200 is 2.8 pounds.
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