- Hi-Flo end cap boosts all-around performance
- Computer designed and dyno-tested for every 4-stroke application
- Enhanced sonic evacuation delivers a higher flow of exhaust gases, which increases power
- A stainless steel mid-pipe mates to the computer-designed rear can for lightweight durability
- Round perforated steel inner cores make for optimum flow, using hi-flo technology
- FMF's exclusive cross-weave internal packing provides longevity and maximum sound dispersion
- Elliptical aluminum can offers strategic sizing for superior performance
- Feature a screen-type spark arrestor that does not interrupt exhaust flow or performance
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 2011-2014 | Beta | RR 350 | |
| 2015-2016 | Beta | RR 350 EFI | |
| 2017-2018 | Beta | RR 350 Race Edtion | |
| 2017-2018 | Beta | RR 390 Race Edition | |
| 2010-2014 | Beta | RR 400 | |
| 2015 | Beta | RR 430 | |
| 2017-2018 | Beta | RR 430 Race Edition | |
| 2010-2014 | Beta | RR 450 | |
| 2012 | Beta | RR 450 Cross Country | |
| 2015-2016 | Beta | RR 480 | |
| 2017-2018 | Beta | RR 480 Race Edition | |
| 2012-2014 | Beta | RR 498 | |
| 2010-2011 | Beta | RR 520 | |
| 2017-2018 | Beta | RR-S 350 | |
| 2017-2018 | Beta | RR-S 390 | |
| 2017-2018 | Beta | RR-S 430 | |
| 2017-2018 | Beta | RR-S 500 | |
| 2012-2013 | Beta | RS 350 | |
| 2011 | Beta | RS 400 | |
| 2015-2016 | Beta | RS 430 | |
| 2010-2014 | Beta | RS 450 | |
| 2010 | Beta | RS 450 Supermoto | |
| 2015-2016 | Beta | RS 500 | |
| 2014 | Beta | RS 520 | |
| 2011 | Beta | SM 400 | |
| 2011 | Beta | SM 450 | |