The GPR Double Slip-on Satinox exhaust enhances the Ducati Monster 400's performance and sound. This Italian-made exhaust system delivers superior power gains and weight reduction. The exhaust features 304 stainless steel construction with a 90mm x 120mm oval design. GPR exhausts provide an optimal balance of performance and sound quality. The system includes specialized mounting hardware for direct fitment. The Satinox finish creates a premium appearance that complements the Monster's styling. Weight Reduction: 3.96 pound lightweight design removes excess mass for improved handling and acceleration Premium Construction: High-grade 304 stainless steel and precision welding ensure long-lasting durability Street Legal Sound: Produces an aggressive tone while maintaining legal sound levels wi.