The FMF Factory Fatty Pipe is designed to deliver an all-around power increase throughout the power range for compatible Beta two-stroke motorcycles. Its tuned expansion-chamber design helps provide strong, usable performance across the engine’s operating range, making it a practical choice for riders seeking improved response and power delivery without changing the motorcycle’s core character.
Built with the appearance and construction associated with FMF’s Factory line, this pipe features hand-pounded welds and an uncoated finish modeled after works-bike equipment. The carefully formed construction supports consistent performance and gives the exhaust a distinctive factory-inspired appearance. This product is identified by FMF manufacturer part number 025157 and vendor part number 78-1146F.
Fitment: The FMF Factory Fatty Pipe fits 2013–2017 Beta 250 RR 2T models and 2013–2017 Beta 300 RR 2T models. Confirm the motorcycle model and year before installation to ensure compatibility. The pipe is intended as a replacement or performance upgrade for the original exhaust component and is designed specifically for the listed Beta applications.
Features:
- Power Increase: Designed to provide an all-around increase in power throughout the engine’s operating range.
- Factory Construction: Features hand-pounded welds for a works-bike-inspired appearance and build.
- Finish: Uses an uncoated Factory pipe finish rather than electro-nickel plating.
- Application: Fits 2013–2017 Beta 250 RR 2T and 300 RR 2T motorcycles.
- Brand and Part Number: FMF Factory Fatty Pipe, manufacturer part number 025157, vendor part number 78-1146F.
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)