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FMF Power Core IV S/A Silencer
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FMF Power Core IV S/A Silencer

Our price: $171.99$314.99

MSRP: $199.99 - $349.99 - You save up to $35.00 (10% off)

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    FMF’s Power Core IV S/A Silencer aims to give your motorcycle, UTV, or ATV a near perfect balance of price, durability, and performance that won’t leave you wanting anything else. Cues for performance were taken from FMF’s top of the line exhaust systems for a solid boost to both horsepower and torque. And with that power you still have the option to run either a USFS approved spark arrestor or optional 96db quiet core.

    The aluminum body also promotes performance and quiet operation thanks to the ample room for packing material that extends the period between repacking / servicing. With the Power Core IV S/A being rounded off with quality construction, great looks, and interchangeable inserts, this silencer is near the top of the pile when you're looking for aftermarket exhaust.

  • Aftermarket silencer for your 4 stroke
  • Comes with USFS approved spark arrestor installed
  • Increase in horsepower and torque over stock
  • Durable stainless steel end cap and mid pipe
  • Lightweight aluminum oval canister
  • Lower weight compared to stock exhaust
  • Easily disassembled for maintenance
  • Advanced packing material extends life
  • Optional 96dB quiet insert available
  • Champagne color anodized canister

FMF Power Core IV S/A Silencer Reviews

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0 of 0 people found this review helpful.

Huge difference in power

Comments On Apr 12, 2016:I can pull a gear higher on my timbersled equipped 2009 YZ450F. I'd planned on buying a different bike before this upgrade, not now.

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0 of 0 people found this review helpful.

Nice power boost!!

Comments On Mar 28, 2016:Very much enjoying the initial boost in power. Almost did a wheelie upon first acceleration. Took it out to the sand dunes to test it out and it performed flawlessly. Had excess boost to get up the dunes. Next up is drag racing in July!

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0 of 0 people found this review helpful.

FMF Powercore

Comments On Mar 08, 2016:I had to replace the complete exhaust system when I recently purchased a used KX450 due to the stock system being dented, etc. I decided to use a Power Bomb (previously reviewed) coupled to the Powercore muffler. This turned out to be a great combination; easy to install, sound and performance are great. Had to rejet, but that was to be expected. A $500 upgrade (with the header), but well worth it for a one time expense; system also looks great on the bike.

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0 of 0 people found this review helpful.

sounds great

Comments On Feb 17, 2016:love the way it sounds has a deep tone when just cruising around but when you open it up it really rips. only complaint is it did not line up with factory mounts but made it work and i dont like how far it sticks out the rear of the 4 wheeler other then that love it

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0 of 0 people found this review helpful.

FMF Power Core IV

Comments On Jan 05, 2016:This exhaust along with a K&N filter provided a very noticeable increase in performance. Installed the carb jets recommended by FMF and after a few adjustments it was up and running. This exhaust is much louder than the stock exhaust and sounds incredible. Definitely worth the money.

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2 of 2 people found this review helpful.

Ronnie Mac approves!

Comments On Sep 30, 2015:Its a long bumpy road trying to find the perfect pipe for your bike. Some are too quiet, some are rip your face off loud.... Others can sound like a bad day in the office restroom. This FMF powercore IV S/A Silencer hits that sweet spot... The exhaust note this baby puts out will have you twisting throttle more and making excuse to the wife just go hear it idle. I loved my FMF slip on, The Quality and fitment were spot on! clamps fit well and nothing ever loosened up on me. I got real cray and removed the S/A and threw on a FMF Powerbomb head pipe. the Sounds my machine produced were mind blowing. pretty much the greatest thing these ears have ever heard. Support FMF support RMATV and DO NOT HESITATE to order this slip on.

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0 of 0 people found this review helpful.

Nice pipe...only option for klx300 I could find

Comments On Sep 25, 2015:Great sound and good power. Very nice / important in Cali that it comes with a Forrest service approved spark arrestor

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Comments On Sep 14, 2015:Fit great sounds great love the product

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1 of 1 people found this review helpful.

Stop debating buying the Power Core 4- JUST DO IT!

Comments On Aug 27, 2015:I spent a good week reviewing website reviews, watching You Tube videos, talking to dealers, etc. There are several options and manufacturers dealing with after market exhaust. The FMF Power Core 4 is absolutely AWESOME. The videos do not do justice to the sound this thing puts out! It went from sounding like a kitten to an angry lion in about 20 minutes of EASY installation.
However, don't expect this to totally give you balls to the wall power. It did increase the performance somewhat and I am very pleased. The immediate change was just the awesome sound and rumble this thing puts out. My TTR is now as loud, or louder, than my brother's YZ!
Highly recommended!

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0 of 0 people found this review helpful.

Great sound and performance

Comments On Aug 15, 2015:This replaced the stock that was the stock can on my old XR650L it woke the bike up a little and it also made it sound great.

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