RESEARCH&DEVELOPMENT OF AMERICA, INC.
www.yoshimura-rd.com
5420 DANIELS STREET STE A, CHINO CA., 91710 · (800) 634-9166 · (909) 628-4722 · FAX (909) 591-2198
NOTE: IN THE STATE OF CALIFORNIA, IT IS ILLEGAL TO MODIFY THE EMISSION CONTROL SYSTEM, WHICH INCLUDES THE CARBURETORS OF ANY VEHICLE.
You must know how to remove and replace your stock exhaust in order to install this product
otherwise have it installed by a professional mechanic. Keep all stock parts from your existing
system as some components may be necessary to install your new Yoshimura exhaust depending
on the application. Read through all instructions before beginning installation. Exhaust system can
be extremely hot. Let motorcycle cool down before beginning installation. Always wear hand and
eye protection and take precautionary measures to avoid injury.
RS -4 Stainless Steel Full-System
224500D320 (AL/CF)
Honda CRF450X
Qualified Manufacturer Declared “Replacement Part ”
2019~2023
ENDURO SERIES
Enduro Series systems are:
• Equipped with USFS-approved spark arrestor.
• CARB/EPA tail-pipe emissions compliant.
• All applications are marked with appropriate EPA noise labels.
• Have not been tested for EPA new vehicle noise compliance.
