Yoshimura RS-4 Enduro Exhaust System
Lighter and compact, the Yoshimura RS-4 Enduro Series exhaust is a great way to power-up the new CRF450X and CRF450L motorcycles. Gain over 4hp with this proven, durable race-level exhaust system. The muffler will operate with or without the spark arrestor insert.
Complete system includes:
- Yoshimura RS-4 muffler
- Stainless steel head pipe
- Spark arrestor insert
- Springs and mounting hardware
- Installation instructions
- Significant power gains with full system
- Full system incorporates a more "tucked in" header design, making it less susceptible to damage
- Header boasts a thicker 18 gauge spec that provides better protection in off-road conditions
- A USFS spark arrestor is included
For closed-course use only.