The FMF Fatty Expansion Pipe is designed to deliver an all-around power increase throughout the engine’s power range. Manufacturer part number 025182, this FMF pipe is engineered for riders who want stronger, more usable performance across the powerband while maintaining the responsive character of a two-stroke engine. Its application-specific design fits select KTM and Husqvarna models, making it a direct performance upgrade for compatible off-road motorcycles.
Built for demanding riding conditions, the pipe features an electro-nickel-plated finish that resists chipping and helps prevent discoloration during normal use. This coating provides a durable exterior while maintaining a clean appearance. FMF also offers application-specific pipe profiles, including Gnarly models for increased low-end torque and Factory Rev models focused on middle- and upper-rpm performance. The Fatty configuration balances power delivery throughout the range for versatile trail, motocross, and off-road riding.
Fitment: The FMF Fatty Expansion Pipe fits the 2016 KTM 125 SX, 2017 KTM 125 SX, 2018 KTM 125 SX, 2017 KTM 150 XC-W, 2018 KTM 150 XC-W, 2016 Husqvarna TC 125, 2017 Husqvarna TC 125, 2018 Husqvarna TC 125, and 2017 Husqvarna TE 150. Verify the motorcycle model and year before installation to ensure proper compatibility. The product is identified by FMF part number 025182 and vendor part number 78-1519.
Features:
- Power Delivery: Provides an all-around power increase throughout the engine’s power range.
- Finish: Electro-nickel-plated construction resists chipping and helps prevent discoloration.
- Application: Designed for select KTM 125 SX, KTM 150 XC-W, Husqvarna TC 125, and Husqvarna TE 150 models.
- Pipe Profile: Fatty design balances performance across the powerband for versatile off-road use.
- Brand and Part Number: FMF manufacturer part number 025182; vendor part number 78-1519.
Fitment:
2016 Husqvarna TC 125
2016 KTM 125 SX
2016 KTM 150 SX
2017 Husqvarna TC 125
2017 Husqvarna TE 150
2017 KTM 125 SX
2017 KTM 125 XC-W
2017 KTM 150 SX
2017 KTM 150 XC-W
2018 Husqvarna TC 125
2018 Husqvarna TE 150
2018 KTM 125 SX
2018 KTM 125 XC-W
2018 KTM 150 SX
2018 KTM 150 XC-W
2019 Husqvarna TE 150
2019 KTM 125 XC-W
2019 KTM 150 XC-W