CRF's Only CRF250L Rally RS-4 Performance Package
*** Use waiver required to ship to California addresses ***
Includes the following tested components for bolt-on performance:
- Yoshimura RS-4 Full System
- EJK Electronic Fuel Control Module
- Power Surge 6X EFI Tuner - Think of it as a EJK on steroids!
- 13T Front Sprocket
The Yoshimura RS-4 is a functional work of art increasing exhaust flow and engine performance. Full System includes an RS-4 muffler with turn-out end-cap, stainless steel header and tail-pipe, low-volume insert, all installation hardware, and step-by-step instructions.