Q4 Hex Exhaust Silencer 07-16 KTM Husaberg Husqvarna 250-501 - FMF 045556

The FMF Q4 HEX S/A 045556 exhaust represents the next evolution in off-road performance, delivering class-leading quiet technology without sacrificing power. Meticulously engineered with advanced chambers, baffles, and proprietary multistage packing material, the Q4 HEX provides substantial power gains across the entire rpm range while maintaining noise levels that meet stringent USFS and FIM World Enduro regulations. Designed specifically for the rigours of off-road use, it offers a robust, lightweight construction that is pounds lighter than stock systems and includes a spark arrestor for trail legality.

Features

• Closed course use only


• Superior noise reduction with 94dB insert (included)


• Delivers tangible power gains throughout the rpm range


• Compatible with USFS and FIM World Enduro sound standards


• Spark arrestor screen insert included for added safety


• Durable, off-road ready design


• Significantly lighter than OEM exhausts


• Dedicated quiet exhaust system manufactured in the USA

Specifications

• Item ID: 045556


• Type: Slip-On


• Configuration: Single


• Construction: Aluminium


• Finish: Natural


• Midpipe: Stainless Steel


• Endcap: Stainless Steel


• Spark Arrestor: Screen Insert (included)


• Quiet Insert: 94dB insert (included)


• Weight: 4.9 lbs


• Not for highway use (Carb Warning: no)

Vehicle Fitment
Husaberg

• FE 250 (2013–2014)


• FE 350 (2013–2014)


• FE 501 (2013–2014)

Husqvarna

• FE 250 (2014–2016)


• FE 350 (2014–2016)


• FE 450 (2015–2016)

KTM

• 250 SX-F (2009–2015)


• 250 XC-F (2009, 2011, 2013–2015)


• 250 XCF-W (2009–2010, 2012–2016)


• 350 SX-F (2011–2015)


• 350 XC-F (2011–2015)


• 350 XCF-W (2012–2016)


• 400 XCW (2009–2010)


• 450 EXC (2009–2011)


• 450 EXCR (2008)


• 450 SMR (2013)


• 450 SX-F (2007–2015)


• 450 SXF Factory Edition (2012, 2014)


• 450 XCF (2009)


• 450 XC-F (2013–2015)


• 450 XCRW (2008)


• 450 XCW (2009–2010)


• 450 XC-W (2012–2016)


• 500 XCF-W (2012–2014)


• 500 XC-W (2013–2016)


• 505 SXF (2008)


• 505 XCF (2008–2009)


• 530 EXC (2009–2011)


• 530 EXCR (2008)


• 530 XCRW (2008)


• 530 XCW (2009–2010)