C7 Corvette Grand Sport Borla ATAK 11875 with NPP Exhaust (2017-2019)

C7 Corvette Grand Sport Borla ATAK 11875 with NPP Exhaust (2017-2019)

Borla designed the ATAK 11875 axle-back for C7 Grand Sport owners who want maximum sound personality while keeping the factory NPP (dual-mode) valve behavior. This rear section delivers a sharper, more aggressive ATAK tone when the valves are open, while still giving you the ability to run quieter when you want. Finished with a quad center rear exit and 4.25" polished tips, it’s a clean OEM+ look with a serious sound upgrade.

Borla 11875 Product Details

• System type: Axle-Back
• Sound level: ATAK (most aggressive Borla sound profile)
• Fitment focus: C7 Grand Sport WITH NPP valves (dual-mode exhaust)
• Years: 2017–2019
• Engine: LT1 (6.2L)
• Transmission: Grand Sport Automatic
• Valves: Includes AFM and NPP valves
• Pipe diameter: Single 2.75" into muffler, dual 2.75" out
• Tip style/finish: 4.25" round polished T-304 stainless tips (dual tips on each muffler)
• Tip exit: Quad center rear exit
• Technology: Straight-through and multi-core muffler design
• Construction: Premium T-304 stainless steel
• Upgrade path: Add Borla X-Pipe 60548 to create a Cat-Back system
• Warranty: Borla Million-Mile Warranty (non-moving parts)

Why C7 Grand Sport Owners Choose Borla ATAK 11875

• ATAK sound profile for the most aggressive Borla tone on the C7 platform
• Keeps factory NPP dual-mode valve functionality for adjustable sound
• Quad center-exit look with 4.25" polished tips for a clean rear finish
• 2.75" piping design supports stronger exhaust flow and a more responsive feel
• Easy upgrade path to a full cat-back later using X-Pipe 60548

What to Expect After Installation

• More presence at throttle with a sharper ATAK edge
• Louder, more aggressive tone than stock when the valves are open
• Stronger rear appearance with quad center-exit polished tips

Corvette Compatibility

• C7 Corvette Grand Sport with NPP: 2017, 2018, 2019
• Fits: Grand Sport Automatic Transmission
• Not compatible: C7 Grand Sport Manual Transmission

Important install note: This system includes AFM and NPP valves. Borla’s warranty coverage is Million-Mile for non-moving parts, and exhaust valves are covered for 1 year. Original equipment AFM and NPP actuator failures are not covered under the Borla warranty.

What Corvette Owners Say

“Exactly what I wanted—more volume and attitude, and the valves still work the way they should.”

FREE SHIPPING in the USA (where applicable). Order the Borla ATAK 11875 today and give your 2017–2019 C7 Grand Sport (Automatic) an aggressive ATAK sound with quad center-exit 4.25" polished tips.