SPARK Ducati Monster S4R / S4RS High Position Slip-on Exhaust "Round" – Factory Racing
Dutch courage: Moto Adonis tackles the Ducati S4R | Bike EXIF
Parts :: Ducati :: Monster S4 / S2R / S4R / S4RS :: Exhaust :: QD Ducati Monster S4R S4RS (998) Exbox Full Exhaust System - HSBK Racing | Race Team | Training Facility | Exotic Parts | Italian Bikes
Zard Carbon Homologated High Exhausts for Ducati Monster S4R S4Rs Testa Stretta | eBay