FMF Racing® - Powercore 4™ Slip-On Muffler

4 reviews|Item # mpn4678747410
Authorized Dealer
$359.99
OUT OF STOCK - Unavailable until further notice
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Vehicle Fitment

Honda

Features

  • U.S. Forestry approved spark arrestor
  • Megamax II is a reverse cone megaphone design and can be run open for closed course or with discs for off-road riding
  • FMF has radically improved the PC IV by creating a modular end cap that allows for easy tuning with various end caps that alter the power band around the needs of the rider. Quickly changed, the standard Hi-Flo 2" end cap, the optional 1-3/4" end cap for
  • Designed for your exhaust system needs
  • Will deliver unparalleled performance
  • Exquisite workmanship and great longevity

Product Details

Powercore 4™ Slip-On Muffler by FMF Racing®. FMF developed the PowerCore 4 to increase the horsepower and torque throughout the entire power curve producing a noticeable power increase that is useable and compatible with every style of riding. Aluminum construction and stainless steel Hi-Flo end caps make for the perfect balance of performance and strength. Aluminum performance muffler with durable stainless steel components. Completely redesigned for all late model applications. Removable spark arrestor included. Aluminum slip-on developed to increase the horsepower and torque throughout the entire power band.

Installation

FMF Racing® - Powercore 4™ Slip-On Muffler Installation Instructions
FMF Racing® - Powercore 4™ Slip-On Muffler Installation guide
FMF Racing® - Powercore 4™ Slip-On Muffler Installation InstructionsFMF Racing® - Powercore 4™ Slip-On Muffler Installation guideMade In USAFMF Racing Authorized DealerFAQCatalogAbout us
Brand:
FMF Racing
Part Number:
041586
Alternate MPN:
041586, 275479

Reviews

(4)
Only authorized customers can leave a review on our website. We would love to know what you like or dislike about the product. Share your opinion on product quality, appearance, installation, and other characteristics.
/5
1-4 of 4 Reviews
5 of 5
Sounds Perfect! Five Stars
I’m very pleased with the results. Installed this muffler without any problems. It fits exactly as described and provides a slight increase in top-end speed. And yes, it sounds really nice. Loud but not annoying. Just what I wanted!
FMF Racing® - Powercore 4™ Slip-On Muffler
Posted by James (Fort Worth, TX) / June 04, 20202018 Yamaha YFZ450R
5 of 5
Nice Product, Works As Described
What a nice exhaust! Very easy to install. Everybody can do it in less than 15 minutes. Looks stunning and gives a slight increase in performance. The sound is miraculous. It makes heads turn when I pass by.
FMF Racing® - Factory 4.1 SL™ 4-Stroke Silencer
Posted by Barbara (Minotola, NJ) / March 03, 20202005 Yamaha YFZ450
5 of 5
High-Performance Exhaust
This exhaust is shorter and lighter than my original muffler, and sits closer to the engine. My YFZ450R breathes easier with this exhaust, resulting in a significant power boost, especially at higher RPMs. And yeah, the carbon-fiber exhaust cap looks really cool.
FMF Racing® - Factory 4.1 RCT™ Slip-On Muffler
Posted by Kathleen (Washington Dc., DC) / May 06, 20192011 Yamaha YFZ450R
5 of 5
Moderate Sound and Performance
Easy-to-install product with a bit more powerful sound at low RPMs. Expected it to sound more aggressive at higher RPMs. Pleased with its finish and look.
Posted by Wali (Warr Acres, OK) / April 06, 20192018 Suzuki RMZ450

Questions and Answers

(0)
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