C7 Corvette Grand Sport Borla ATAK 11903CB with NPP Exhaust (2017-2019)

Borla ATAK Axle-Back Exhaust for C7 Corvette Grand Sport Manual with NPP (11903CB)

Borla ATAK 11903CB is the axle-back for 2017–2019 C7 Corvette Grand Sport owners who have the factory NPP dual-mode valves and a manual transmission, and want the most aggressive ATAK sound profile with a darker rear finish. It keeps the valve-controlled behavior you already like, while adding more bite and presence—finished off with quad ceramic black intercooled tips.

Borla 11903CB Product Details

• System type: Axle-Back
• Sound level: ATAK (aggressive)
• Fitment focus: 2017–2019 Grand Sport Manual WITH NPP valves
• Engine: LT1 (6.2L)
• Pipe diameter: 2.75"
• Valves: Equipped with NPP valves; built without AFM valves
• Exit: Quad center rear exit
• Tips: Quad 4.25" round intercooled T-304 stainless tips with high-temp ceramic black finish
• Construction: Premium T-304 stainless steel with mandrel bends
• Upgrade path: Add Borla X-Pipe 60548 to build a Cat-Back system
• Warranty: Million-Mile Warranty for non-moving parts; exhaust valves covered for 1 year

Why Grand Sport Owners Choose ATAK 11903CB (Street Builds)

• Maximum sound presence while keeping factory-style NPP valve control
• ATAK tone with a no-drone sound strategy designed for real driving
• Quad ceramic black tips give the rear a stealthier, higher-contrast look
• Axle-back layout keeps the install simple while delivering a big sound change

What to Expect After Installation

• Sharper, more aggressive sound under throttle
• More volume and edge than stock, especially when the valves are open
• Factory-style valve behavior retained through the NPP setup

Corvette Compatibility

• Fits 2017–2019 Chevrolet Corvette C7 Grand Sport with NPP dual-mode valves — Manual Transmission ONLY.
• Drive: RWD.
• Also listed to fit: 2015–2019 C7 Z06 with NPP (automatic or manual).

What Corvette Owners Say

“Exactly the aggressive tone I wanted, and the valve modes still behave like they should. The black tips look perfect on the rear.”

Ready to upgrade? Order the Borla ATAK 11903CB today for your C7 Grand Sport manual with NPP and finish the rear with quad ceramic black tips—backed by Free Shipping.