The Pro Circuit R-304 Silencer, manufacturer part number 1151725 and vendor part number 792-2218R, is designed for riders seeking strong performance gains from a compact two-stroke exhaust system. Its streamlined construction supports responsive performance while maintaining a practical design for competition use. This silencer is recommended for closed-course racing only and is not intended for public-road operation.
Hex-head screws secure the inlet cap and can be removed easily for quick access to the packing material. This service-friendly design simplifies routine maintenance and makes repacking the silencer more efficient between rides or race events. The R-304 must be used with the appropriate Pro Circuit Pipe or the stock pipe, as specified for the application, to help ensure proper fitment and exhaust-system compatibility.
Fitment includes 2017–2018 KTM 250 SX, 250 XC, and 250 XC-W models, along with 2017–2018 KTM 300 XC and 300 XC-W models. Verify the exact motorcycle model and year before ordering. The Pro Circuit R-304 Silencer delivers a compact, race-focused solution for compatible KTM two-stroke motorcycles and is built for riders who prioritize performance, easy maintenance, and dependable installation.
Features:
- Compact R-304 design supports strong performance gains
- Recommended for closed-course racing only
- Hex-head screws allow easy inlet-cap removal
- Quick-repacking design simplifies silencer maintenance
- Must be used with the appropriate Pro Circuit Pipe
- Compatible with the stock pipe where specified
- Fits select 2017–2018 KTM 250 and 300 two-stroke models
Fitment:
2017 KTM 250 SX
2017 KTM 250 XC
2017 KTM 250 XC-W
2017 KTM 300 XC
2017 KTM 300 XC-W
2018 KTM 250 SX
2018 KTM 250 XC
2018 KTM 250 XC-W
2018 KTM 250 XC-W TPi
2018 KTM 300 XC
2018 KTM 300 XC-W