Description
Two-stroke performance demands precise exhaust tuning, and the Pro Circuit 304 Silencer delivers measurable horsepower gains while keeping your KTM 125 SX street-legal. Whether you’re chasing podium finishes or weekend trail dominance, this silencer optimizes scavenging efficiency and peak RPM performance without sacrificing reliability. Engineered for serious riders who refuse to compromise on power or durability.
- Application: KTM 125 SX 2004-2010
- Construction: 6061 T6 aluminum
- Inlet tube: Stainless steel
- End cap: Stainless steel
- Mounting brackets: Double-walled design
- Fasteners: Allen head screws
- Welding: TIG and MIG
- Installation: Bolt-on
- Noise reduction: Extended chamber design
- MPN: ST04125-SE
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