The FMF Factory Fatty expansion chamber pipe is designed to deliver an all-around power increase throughout the engine’s power range. This performance exhaust component helps optimize power delivery for riders seeking stronger, more responsive performance from compatible KTM and Husqvarna youth motocross motorcycles. The pipe is manufactured by FMF and carries manufacturer and vendor part number 025090, with vendor reference 78-1516F.
Features: All pipes are electro-nickel plated for a durable, non-chip finish that resists discoloration during normal use. The Factory pipe is the exception, featuring hand-pounded welds and no coating for an appearance and construction style inspired by FMF works race bikes.
Fitment: The FMF Factory Fatty pipe fits select 2006–2011 KTM 85 SX models with 17-inch front and 14-inch rear wheels, including the KTM 85 SX/XC and KTM 105 SX/XC applications identified by FMF. It also fits 2014–2017 Husqvarna TC 85 models with 17-inch front and 14-inch rear wheels. Confirm the motorcycle year, model, wheel configuration, and exhaust compatibility before installation. This product is intended as a replacement or performance upgrade for the original expansion chamber and should be installed using appropriate exhaust hardware and manufacturer-recommended procedures.
Features:
- Power Delivery: Provides an all-around power increase throughout the engine’s usable power range.
- Finish: Electro-nickel plating delivers a durable, non-chip finish that resists discoloration.
- Factory Construction: Includes hand-pounded welds and an uncoated finish styled after FMF works racing pipes.
- Fitment: Designed for select KTM 85 SX/XC and KTM 105 SX/XC applications, plus 2014–2017 Husqvarna TC 85 models with 17-inch front and 14-inch rear wheels.
- Identification: FMF manufacturer and brand; manufacturer and vendor part number 025090; vendor reference 78-1516F.
Fitment:
2006 KTM 85 SX (17/14)
2006 KTM 85 SX (19/16)
2007 KTM 105 SX
2007 KTM 85 SX (17/14)
2007 KTM 85 SX (19/16)
2008 KTM 105 SX
2008 KTM 105 XC
2008 KTM 85 SX (17/14)
2008 KTM 85 SX (19/16)
2008 KTM 85 XC
2009 KTM 105 SX
2009 KTM 105 XC
2009 KTM 85 SX (17/14)
2009 KTM 85 SX (19/16)
2009 KTM 85 XC
2010 KTM 105 SX
2010 KTM 105 XC
2010 KTM 85 SX (17/14)
2010 KTM 85 SX (19/16)
2011 KTM 105 SX
2011 KTM 85 SX (17/14)
2012 KTM 105 SX
2012 KTM 85 SX (17/14)
2013 KTM 85 SX (17/14)
2013 KTM 85 SX (19/16)
2014 Husqvarna TC 85 (17/14)
2014 KTM 85 SX (17/14)
2014 KTM 85 SX (19/16)
2015 Husqvarna TC 85 (17/14)
2015 KTM 85 SX (17/14)
2015 KTM 85 SX (19/16)
2016 Husqvarna TC 85 (17/14)
2016 KTM 85 SX (17/14)
2016 KTM 85 SX (19/16)
2017 Husqvarna TC 85 (17/14)
2017 KTM 85 SX (17/14)
2017 KTM 85 SX (19/16)