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FMF

FMF Factory 4.1 RCT Exhaust System KTM / Husqvarna 450cc 2015-2018

Item: P325399

The FMF Factory 4.1 RCT full system is constructed from aerospace-grade materials that meet FMF's exacting specifications and is 100% manufactured in … Read More

$787.49 $989.99
$874.99 $1,099.99
Save up to Save $110.00 10%
Price depends on product options. Make a selection to update price.
Rebate Available! View Details
This product is vehicle specific.
Select a bike to ensure fitment.
Looking for a different bike?
Please select a Material to view availability.

Product Details

This product is legal in California only for racing vehicles which may never be used, registered or licensed for use upon a highway.

FMF Factory 4.1 RCT Exhaust System KTM / Husqvarna 450cc

The FMF Factory 4.1 RCT full system is constructed from aerospace-grade materials that meet FMF's exacting specifications and is 100% manufactured in their Southern California factory. The patented MegaBomb header design allows exhaust gases to expand, cool and ramp back up at a higher velocity. This results in torque gains typically associated with longer headers, and the healthy over-rev of a short header. The muffler itself is shorter than OEM mufflers, making it less susceptible to crash damage and complements the centralized mass design by moving it closer to the motor. The rear end cap was engineered for fast and easy tuning by utilizing a retaining ring to keep the standard and optional inserts in place.

Features:

  • Massive power gains throughout the RPM range
  • Huge weight savings over stock exhaust
  • RTS (Rapid Tuning System) for quick and easy track-side tuning
  • Removable spark arrestor included
  • Titanium MegaBomb Header
  • Quiet insert included (94db)
  • Meets AMA and FIM sound requirements 
  • 100% made in the USA

Weight:

  • Titanium / Carbon end cap 5.6 lbs
  • Full Titanium 5.7 lbs
  • Stainless Steel / Aluminum / Carbon 6.9 lbs
Made in the USA
Product Style RevZilla Item # MFR. Product # Availability
Product Style Stainless Steel/Aluminum/Carbon Fiber RevZilla Item #1179956 MFR. Product #45614 AvailabilityIn Stock: Ships within 24 hours
Product Style Titanium/Titanium/Titanium RevZilla Item #1085871 MFR. Product #045599 AvailabilityOut of Stock
Product Style Titanium/Blue Titanium/Carbon Fiber RevZilla Item #1085869 MFR. Product #45588 AvailabilityIn Stock: Ships within 24 hours
Product Style Titanium/Blue Titanium/Titanium RevZilla Item #1085870 MFR. Product #045600 AvailabilityOut of Stock
This product is vehicle specific.
Select a bike to ensure fitment.
This Product Fits
Husqvarna
FC450 2016, 2017, 2018
FX450 2017, 2018
KTM
450 SX-F 2016, 2017, 2018
450 SX-F Factory Edition 2015, 2016, 2017, 2018
450 XC-F 2016, 2017, 2018
This item is also available for 72 different bikes. View All Models
Honda
CRF150R 2007-2019
CRF250R 2014-2017
CRF250R 2018-2019
CRF450R 2013-2014
CRF450R 2015-2016
CRF450R 2017-2018
CRF450R 2019
CRF450RX 2017-2018
CRF450RX 2019
Husaberg
FE350 2013-2014
Husqvarna
FC250 2014-2015
FC250 2019
FC250 2016-2018
FC350 2015
FC350 2016-2018
FC350 2019
FC450 2014-2015
FC450 2019
FC450 Rockstar Edition 2018
FE250 2014-2015
FE350 2014-2015
FX350 2017-2018
FX350 2019
FX450 2019
KTM
250 SX-F 2011-2012
250 SX-F 2013-2015
250 SX-F 2019
250 SX-F 2016-2018
250 SX-F Factory Edition 2015-2017
250 XC-F 2013-2015
250 XC-F 2019
250 XC-F 2016-2018
250 XCF-W 2014-2016
350 EXC-F 2012-2015
350 SX-F 2011-2012
350 SX-F 2016-2018
350 SX-F 2019
350 XC-F 2011-2012
350 XC-F 2016-2018
350 XC-F 2019
350 XCF-W 2014-2016
350 XCF-W 2012-2013
450 SMR 2013
450 SX-F 2011-2012
450 SX-F 2013-2015
450 SX-F 2019
450 SX-F Factory Edition 2012-2014
450 XC-F 2013-2015
450 XC-F 2019
450 XC-W 2012-2016
500 EXC 2012-2015
500 XCF-W 2012
500 XC-W 2013-2016
Kawasaki
KX250F 2009-2016
KX250F 2017-2018
KX450F 2012-2015
KX450F 2016-2017
KX450F 2019
Suzuki
RMZ250 2013-2018
RMZ450 2011-2017
RMZ450 2018-2019
Yamaha
WR250F 2015-2019
WR450F 2016-2018
WR450F 2019
YZ250F 2019
YZ250F 2014-2018
YZ250FX 2015-2019
YZ450F 2020
YZ450F 2014-2017
YZ450F 2018-2019
YZ450FX 2016-2018
YZ450FX 2019
Product Description
Part Numbers
Fitment
2 Customer Reviews
2 5/5
9 Questions & 2 Answers

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