Overview Product Description INCLUDES 2 SPRINGS. CIK APPROVED FOR CANADA TO BE USED WITH WORLD FORMULA PIPE P/N EXF5950. Product Videos Custom Field Product Reviews Write a Review Write a Review × P/N EXF4110: World Formula Silencer, Canada Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *