The B&B Fusion Exhaust System (FCOR-0464) for the Chevrolet C6 Corvette (2005–2008) with factory NPP exhaust delivers a refined yet aggressive bi-modal exhaust experience. Combining the best traits of the Bullet and OEM systems, this Fusion exhaust uses the factory exhaust valve to give you a deeper, richer tone at idle and cruise (closed), and a bold, aggressive sound when the valves open at higher RPM or throttle inputs. Constructed with mandrel-bent T-304 stainless steel and quad 4″ round double-wall tips, it enhances sound quality, improves exhaust flow, and upgrades rear aesthetics — all in a direct-fit, bolt-on package that uses your car’s original NPP controls. Fitment Notes Designed specifically for Chevrolet C6 Corvette (2005–2008) equipped with the factory NPP (dual-mode) exhaust option. Compatible with base C6, Grand Sport, and associated trims within the 2005–2008 range when factory NPP hardware is present. Bi-modal operation retains the factory valve control logic, with ‘quiet’ cruising sound when closed and aggressive tone when open. Direct bolt-on installation with no cutting or welding required — uses factory mounting points. Optional retro control kit available for cars without NPP to add valve control functionality. Included Full B&B Fusion Exhaust System (FCOR-0464) rear exhaust assembly Quad 4″ round double-wall stainless tips for upgraded rear appearance Mounting hardware and clamps for bolt-on installation Installation instructions Product Specs Part Number: FCOR-0464 Material: Mandrel-bent T-304 stainless steel — durable and corrosion-resistant. Tip Configuration: Quad 4″ round double-wall tips for a bold rear stance. Exhaust Type: Bi-modal Fusion system operating with OEM NPP valve logic. Fitment: C6 Corvette models 2005–2008 with NPP factory exhaust. Product Features Bi-Modal Performance: Delivers one tone for casual cruising (closed valve) and a more aggressive tone when the NPP exhaust valve opens at higher load. Enhanced Sound Quality: Tuning and muffler design aim for a rich, muscular sound without excessive drone — respectable on the street, exciting under throttle. Improved Exhaust Flow: Mandrel-bent piping enhances flow compared to stock systems, aiding throttle response and improving exhaust efficiency. Premium Construction: High-grade T-304 stainless steel offers long-lasting durability and corrosion resistance. Direct OEM Valve Integration: Uses factory NPP valve actuators and ECU control for seamless operation. Enhanced Quad Tip Look: Aggressive quad 4″ tips elevate the visual presence of the C6’s rear end.