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FMF PowerCore 4 SA Muffler - 045189

  • Part #: 433958
  • Manufacturer Part #: 045189
This item is no longer available

Overview of FMF PowerCore 4 SA Muffler - 045189

  • Computer designed, then dyno tested for each 4-stroke model listed
  • The highest-flowing exhaust system offered means top performance
  • Trademarked Square Core inner design has a larger surface area than old-style round cores
  • Stainless steel mid-pipe mates to the computer-designed aluminum rear can; elliptical aluminum canister for peak performance
  • Depending on the machine, square or round perforated steel inner cores create optimum flow with Hi-Flo technology
  • It all adds up to greatly improved flow and substantial power gains
  • Substantial weight reduction when compared to stock
  • Include a Forest Service-approved spark arrestor; arrestor does not hamper the exhaust flow so there's no performance loss

Included Items:
(1) Muffler
(1) 8x65mm bolt
(1) 6x45mm bolt
(1) Spacer
(1) Clamp
(1) Instructions

Specs for FMF PowerCore 4 SA Muffler - 045189

Type - Exhaust Slip-On/Muffler
Units Each
Weight 6.15 lbs

Specs for FMF PowerCore 4 SA Muffler - 045189

Type - Exhaust Slip-On/Muffler
Units Each
Weight 6.15 lbs

Fitment for FMF PowerCore 4 SA Muffler - 045189

See if this part fits your ride

Part 433958 fits the following machines

Polaris
  • 2010 Polaris Outlaw 450 MXR
  • 2009 Polaris Outlaw 450 MXR
  • 2008 Polaris Outlaw 450 MXR
  • 2010 Polaris Outlaw 525 S
  • 2009 Polaris Outlaw 525 S
  • 2008 Polaris Outlaw 525 S
  • 2008 Polaris Outlaw 525 S LE
4.7 / 5.0
27 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
19
7
1
0
0
Finish
4.7 / 5
Performance
4.7 / 5
Loudness
Very Quiet
Average
Very Loud
Finish
5 / 5
Performance
5 / 5
Best Performance for Money
TheFMF Powercore 4 is the overall best buy for the buckit has one of the most unique sounds and also adds an excellent power burst to your machine. I will nerver buy anything but a Powercore 4!
December 20, 2009
Finish
5 / 5
Performance
5 / 5
Great pipe for the money
Love the sound, but took a little work to get it to fit. The problem wasn't the pipe, it was my bike. The increase in power is reallly nice and it sounds great.
March 3, 2010
Finish
4 / 5
Performance
4 / 5
Muffler Review
Installation was easy and fit was good. Product looks well made. I was looking for a lighter than stock unit
with more power throughout the bottom to top range, yet keep the noise level low. This unit came very close to meeting these goals.
January 24, 2010
Finish
5 / 5
Loudness
Very Quiet
Average
Very Loud
Performance
5 / 5
Best Purchase Ever
I got this pipe for my 2002 crf 450 took five min to install and was the best pipe for the money, sounds great, looks good, has more power, great spark arrester that comes right out when on the track or where you dont need one, buy one you wont be sorry you cant find one better for the price.
September 13, 2010
Finish
5 / 5
Performance
5 / 5
great bolt-on for TTR
Great bolt-on for the TTR! Really wakes up the motor. You need to increase the carb jets to get the most from the pipe. Sounds good, much louder than stock but not obnoxious. Great fitment, took 5 minutes to remove the old pipe and install the new one.
May 23, 2011
Finish
5 / 5
Performance
5 / 5
best purchase ever
this pipe is awsome u can really fill the differnce in it gives you alot more power and sounds really cool
July 20, 2010
Finish
5 / 5
Loudness
Very Quiet
Average
Very Loud
Performance
5 / 5
Great pipe for '01 Wolverine
I was worried about getting a pipe that might be too noisy for where I ride, but decided it was worth a try ($200 cheaper than a factory replacement). The pipe is great, and with the quiet core installed this is quieter thanthe factory ever was. The fit was great and the part shipped to me in 4 business days. Would not hessitate on recommending this part to anyone looking for great fit and a quiet exhaust.
April 8, 2011
Finish
5 / 5
Loudness
Very Quiet
Average
Very Loud
Performance
4 / 5
Great Pipe- need jets!!
The part itself is great, the problem we incurred was there were no jet kits available for this bike and the local yamaha dealer who installed the pipe had no way to test without trial and error @ $80 per error!!! Jet kits should be included or at least available for ALL models and this part should come with suggestions for appropriate jets!
October 19, 2009
Finish
5 / 5
Loudness
Very Quiet
Average
Very Loud
Performance
4 / 5
power core 4
easy fit...great additon to my bike. With air box mods it makes a great improvement for any bike.
March 14, 2011
Finish
5 / 5
Loudness
Very Quiet
Average
Very Loud
Performance
4 / 5
Great performance, low noise.
I was impressed with the fit and finnish and did see some improvement in low end torque. i was a little let down with how quiet it was compared to my old silencer, but am happy with it overall. I would highly recomend this product to anyone looking for a nice mellow sound.
March 22, 2013

Instructions and Manuals for FMF PowerCore 4 SA Muffler - 045189

Owner's Manual Owner's Manual PDF 230.7 KiB

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