Pro Circuit R-304 Shorty Aluminum Silencer

Unlock race-ready performance with the Pro Circuit R-304 Shorty Aluminum Silencer, engineered for 2-stroke riders who demand sharp throttle response, a refined exhaust note, and a compact, track-focused design.

Built for serious motocross and supercross competition, the R-304 enhances low-to-mid power delivery while maintaining strong top-end pull, giving you faster exits and more precise control in tight sections.

Key Features

Shorty canister for snappier throttle response and improved acceleration.
Lightweight aluminum body reduces overall bike weight without sacrificing durability.
Performance-tuned core for maximum exhaust flow and crisp, race-inspired sound.
Compact profile designed to stay out of the way in ruts and whoops.
Track-oriented design ideal for closed-course competition.
Easy installation with precise fitment for popular 2-stroke models.

Why Choose the R-304?

If you want quicker response off the gate, better drive out of corners, and a clean, pro-level tone, the R-304 Shorty delivers. It’s a proven choice for riders looking to boost performance where it counts most—on the track.

Note: For closed-course competition use only. Check model-specific fitment and local regulations before installation.