The GPR M3 Inox exhaust system delivers superior performance for the Aprilia RS 457. This exhaust system increases power output and enhances sound quality. The M3 Inox exhaust features premium stainless steel construction with expert hand-brushed finishing. The exhaust system includes a removable racing grill and CNC-machined components. The 100mm round design provides an aggressive look while reducing overall weight. GPR developed this system based on their championship-winning Moto3 racing experience. Aprilia RS 457 2024-2025 Exhaust Fitment Aprilia RS 457 2024 2025 GPR Exhaust Information Removable DB Killer: Included Weight: 3.3 pounds (1.5 kg) Finish: Brushed Stainless steel Link pipe: Full system, includes headers Catalyst: Not necessary for this product European Homologation: No, contact us for a homologated alternative Aprilia RS 457 GPR M3 Inox Exhaust Details Enhanced Performance: The full system design maximizes power gains while maintaining optimal fuel efficiency Premium Sound Quality: The engineered acoustics deliver a deeper, more aggressive exhaust note compared to stock Significant Weight Reduction: The lightweight stainless steel construction saves 2.2 pounds over the stock system Easy Installation: Complete mounting hardware and brackets enable direct bolt-on fitment without modifications Racing Heritage: Technology derived from GPR's championship-winning Moto3 racing program Quality Construction: Italian craftsmanship with high-grade welding ensures lasting durability Warranty Protection: 2-year international warranty provides peace of mind