C7 Corvette Grand Sport Borla ATAK 11863CB with Standard Exhaust (2014-2019)

C7 Corvette Grand Sport Borla ATAK 11863CB with Standard Exhaust (2017-2019)

Borla built the ATAK 11863CB axle-back for C7 Grand Sport owners running the standard (non-NPP) exhaust who want a louder, sharper sound personality with a clean quad-center exit look. This system keeps the aggressive ATAK character when you get on it, while staying comfortable on the highway with a no-drone cruising tone.

Borla 11863CB Product Details

• System type: Axle-Back
• Sound level: ATAK (most aggressive Borla sound profile)
• Fitment focus: C7 Grand Sport WITHOUT NPP (standard exhaust)
• Years: 2017–2019
• Engine: LT1 (6.2L)
• Transmission: Grand Sport Automatic
• Valves: Includes AFM valves and does not include NPP valves
• Pipe diameter: Single 2.75" into muffler, dual 2" out
• Tip style/finish: Dual 4.25" round intercooled ceramic black tips on each muffler
• Tip exit: Quad center rear exit
• Construction: Premium T-304 stainless steel
• Upgrade path: Add X-Pipe 60548 to create a Cat-Back system
• Warranty: Million-Mile Warranty (non-moving parts)

Why C7 Grand Sport Owners Choose Borla ATAK 11863CB

• Maximum ATAK sound personality for non-NPP Grand Sport builds
• Keeps AFM valve functionality while staying non-NPP (standard exhaust) compatible
• Quad center-exit look with durable intercooled ceramic black tips
• Easy upgrade path to a full cat-back later with X-Pipe 60548

What to Expect After Installation

• More presence at throttle with a sharper ATAK edge
• A clean, aggressive rear finish with quad center-exit ceramic black tips
• Comfortable cruising character designed to avoid cabin drone

Corvette Compatibility

• C7 Corvette Grand Sport (LT1) WITHOUT NPP: 2017, 2018, 2019
• Fits: Grand Sport Automatic Transmission
• Not compatible: C7 Grand Sport Manual Transmission

Important install note: This system includes AFM valves and does not include NPP valves. It’s a match for standard (non-NPP) exhaust cars, and it can also be used when NPP is disabled. Warranty coverage is Million-Mile for non-moving parts, exhaust valves are covered for 1 year, and original equipment AFM/NPP actuator failures are not covered.

What Corvette Owners Say

“Exactly the kind of aggressive sound I wanted—loud when I’m on it, but still clean at cruise.”

FREE SHIPPING in the USA (where applicable). Order the Borla ATAK 11863CB today and give your 2017–2019 C7 Grand Sport (Automatic, non-NPP) a true ATAK personality with quad center-exit 4.25" ceramic black tips.