The FMF Gnarly Pipe, manufacturer part number 025156 and vendor part number 025156, is a heavy-duty expansion chamber designed for select Beta 250 RR and Beta 300 RR two-stroke motorcycles. This performance pipe is engineered for late-model 200cc-and-up applications, providing strong low-end torque and dependable power delivery for off-road riding. The Gnarly profile is intended for riders who want improved bottom-end response and usable power in technical terrain.
Built with a heavy-duty 18-gauge steel body, the FMF Gnarly Pipe is designed to withstand the impacts and demanding conditions associated with off-road use. The pipe is electro-nickel plated for a durable, non-chip finish that helps resist discoloration. Its construction combines performance-focused design with added durability for trail, enduro, and other rugged riding environments. Installation should be completed using the appropriate motorcycle-specific hardware and manufacturer-recommended procedures.
Feature: Heavy-duty 18-gauge steel body for demanding off-road riding.
Feature: Gnarly performance profile for increased low-end torque and response.
Feature: Electro-nickel-plated finish helps resist chipping and discoloration.
Feature: Fits 2013–2017 Beta 250 RR 2T models.
Feature: Fits 2013–2017 Beta 300 RR 2T models.
The FMF Gnarly Pipe 025156 is designed specifically for the listed Beta fitments and should not be used as a universal replacement without confirming compatibility. It fits Beta 250 RR two-stroke motorcycles from 2013 through 2017 and Beta 300 RR two-stroke motorcycles from 2013 through 2017. Verify the motorcycle year, model, engine configuration, mounting points, and exhaust requirements before ordering.
Features:
- Heavy-duty 18-gauge steel body for demanding off-road riding
- Gnarly performance profile for increased low-end torque and response
- Electro-nickel-plated finish helps resist chipping and discoloration
- Fits 2013–2017 Beta 250 RR 2T models
- Fits 2013–2017 Beta 300 RR 2T models
Fitment:
2013 Beta 250 RR (2T)
2013 Beta 300 RR (2t)
2014 Beta 250 RR (2T)
2014 Beta 300 RR (2t)
2015 Beta 250 RR (2T)
2015 Beta 300 RR (2t)
2016 Beta 250 RR (2T)
2016 Beta 300 RR (2t)
2017 Beta 250 RR (2T)
2017 Beta 300 RR (2t)
2018 Beta 250 RR (2T)
2018 Beta 300 RR (2t)
2019 Beta 250 RR (2T)
2019 Beta 300 RR (2t)