C7 Corvette Grand Sport CORSA Sport Axle-Back Exhaust 14764BLK (2017–2019)
Upgrade your C7 Corvette Grand Sport (2017–2019) with the CORSA Sport axle-back exhaust system, part number 14764BLK. Designed specifically for automatic transmission Grand Sport models, this system delivers a refined performance tone with zero interior drone.
Constructed from premium 304 stainless steel, the 14764BLK features a straight-through, high-flow axle-back design paired with 4.5" Quad Black Pro-Series tips for an aggressive, factory-plus appearance. CORSA’s patented Reflective Sound Cancellation® (RSC®) technology targets unwanted frequencies, allowing the exhaust to sound bold under throttle while remaining comfortable during highway cruising.
Why choose CORSA Sport 14764BLK for your Grand Sport
- Sport sound level: aggressive yet refined for daily driving
- RSC® no-drone technology: eliminates cabin resonance
- 304 stainless steel construction: corrosion resistant and durable
- Quad 4.5" black Pro-Series tips: bold, performance-focused styling
- Bolt-on installation: no cutting or welding required
Fitment & valve notes (important)
- Fits: C7 Corvette Grand Sport (2017, 2018, 2019) Coupe & Convertible
- Transmission: Automatic only
- Factory exhaust: Compatible with vehicles originally equipped with NPP or standard non-NPP exhaust
- Note: This is a non-NPP axle-back. Vehicles originally equipped with NPP will not retain adjustable exhaust modes after installation. Factory valves/actuators must be addressed per the owner’s preferred solution.
What Corvette owners say
“Perfect balance for my Grand Sport—noticeably stronger than stock, but still smooth on the highway. Zero drone.” – Laura P.
Corvette Parts and Accessories has helped Corvette owners choose the right upgrades for nearly two decades.
Fast nationwide shipping — upgrade your C7 Corvette Grand Sport with confidence.
✅ In-stock items ship within 24–48 hours via Standard Ground.
✅ Free shipping items are available in the Continental US only.
✅ Custom quotes available for 2-Day, Next Day, or Saturday delivery.
✅ Custom or backordered items ship as soon as available.
