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FMF Racing engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full FMF Racing lineup with fast shipping and expert fitment support — order with confidence.
The FMF Racing 4.1 RCT Stainless Steel Muffler is engineered to provide significant power gains across the entire RPM range. Designed for riders who demand durability and performance, this system features the Resonance Chamber Technology (RCT) which reduces sound output while maintaining high flow rates.
This muffler is the result of extensive R&D, ensuring that your engine breathes better and produces more usable torque. The 4.1 RCT is a favorite among professional racers and weekend warriors alike, offering a distinct exhaust note and a noticeable improvement in throttle response. Whether you are hitting the track or the trails, this exhaust system is built to withstand the rigors of competitive riding. Upgrade your machine's potential with this premium exhaust solution from GGCRACING.
| Years | Make | Model | Trim |
|---|---|---|---|
| 2017-2019 | KTM | 250 EXC-F | Base |
| 2016-2018 | KTM | 250 SX-F | Base |
| 2015-2016 | KTM | 250 SX-F Factory Edition | Base |
| 2016-2018 | KTM | 250 XC-F | Base |
| 2017-2019 | KTM | 350 EXC-F | Base |
| 2016-2018 | KTM | 350 SX-F | Base |
| 2016-2018 | KTM | 350 XC-F | Base |
| 2018-2019 | KTM | 450 EXC-F | Base |
| 2015-2017 | KTM | 450 SX-F Factory Edition | Base |
| 2016-2018 | KTM | 450 XC-F | Base |
| 2017-2019 | KTM | 500 EXC-F | Base |
Other popular FMF Racing products customers consider together:
FMF Racing engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full FMF Racing lineup with fast shipping and expert fitment support — order with confidence.
The FMF Racing 4.1 RCT Stainless Steel Muffler is engineered to provide significant power gains across the entire RPM range. Designed for riders who demand durability and performance, this system features the Resonance Chamber Technology (RCT) which reduces sound output while maintaining high flow rates.
This muffler is the result of extensive R&D, ensuring that your engine breathes better and produces more usable torque. The 4.1 RCT is a favorite among professional racers and weekend warriors alike, offering a distinct exhaust note and a noticeable improvement in throttle response. Whether you are hitting the track or the trails, this exhaust system is built to withstand the rigors of competitive riding. Upgrade your machine's potential with this premium exhaust solution from GGCRACING.
| Years | Make | Model | Trim |
|---|---|---|---|
| 2017-2019 | KTM | 250 EXC-F | Base |
| 2016-2018 | KTM | 250 SX-F | Base |
| 2015-2016 | KTM | 250 SX-F Factory Edition | Base |
| 2016-2018 | KTM | 250 XC-F | Base |
| 2017-2019 | KTM | 350 EXC-F | Base |
| 2016-2018 | KTM | 350 SX-F | Base |
| 2016-2018 | KTM | 350 XC-F | Base |
| 2018-2019 | KTM | 450 EXC-F | Base |
| 2015-2017 | KTM | 450 SX-F Factory Edition | Base |
| 2016-2018 | KTM | 450 XC-F | Base |
| 2017-2019 | KTM | 500 EXC-F | Base |
Other popular FMF Racing products customers consider together:
