Borla ATAK Axle-Back Exhaust for C7 Corvette Z06 with NPP (11905)
Borla ATAK 11905 is an axle-back upgrade for the 2015–2019 C7 Corvette Z06 that keeps the factory-style NPP dual-mode valve setup while delivering a sharper, more aggressive sound character. If you want a bigger change than stock without replacing the full system, this is a clean “rear section” swap that also finishes the car with a quad center-exit look.
Borla 11905 Product Details
- System type: Axle-Back
- Sound level: ATAK (aggressive)
- Fitment focus: C7 Z06 with NPP valves (retains NPP); system is not equipped with AFM valves
- Engine: LT4 (Z06)
- Pipe diameter: 2.75"
- Exit: Quad center rear exit
- Tips: Dual 4.25" round polished T-304 stainless tips on each muffler (quad total), rolled angle-cut
- Construction: Premium T-304 stainless steel with mandrel bends
- Upgrade path: Add Borla X-Pipe 60548 to build this into a Cat-Back system
- Warranty: Million-Mile Warranty for non-moving parts (exhaust valves covered 1 year)
Why Z06 Owners Choose ATAK 11905 (Street Builds)
- More edge and volume than stock while keeping the NPP valve behavior
- Designed to stay enjoyable in the cabin (no-drone sound strategy)
- Quad center-exit tips give the rear a cleaner, more finished look
- T-304 stainless construction built for long-term corrosion resistance
What to Expect After Installation
- Stronger sound presence when you get into the throttle
- Crisper exhaust note than stock with an aggressive ATAK personality
- Factory-style valve functionality retained through the NPP setup
Corvette Compatibility
- Fits 2015–2019 Chevrolet Corvette C7 Z06 (Coupe or Convertible) with NPP dual-mode valves.
- Transmission: Automatic or Manual (Z06)
- Also fits: 2017–2019 C7 Grand Sport with NPP, manual transmission only
What Corvette Owners Say
“It’s the aggressive sound I wanted, and the valved behavior still works like stock.”
Ready to upgrade? Order the Borla ATAK 11905 today and give your C7 Z06 a more aggressive voice while keeping the NPP valve functionality.
✅ 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.
