Borla S-Type Axle-Back Exhaust System (11910) - 2015-2019 Chevrolet Corvette C7 Z06 & Grand Sport (Valve-Delete / Without AFM & NPP)
Unleash the iconic sound of American muscle without any mechanical restrictions with the Borla S-Type Axle-Back Exhaust System. Custom-engineered specifically for 2015 to 2019 Chevrolet Corvette C7 Z06 platforms and 2017 to 2019 Grand Sport models, this premium aftermarket upgrade is designed for enthusiasts seeking a complete valve-delete setup. By omitting both Active Fuel Management (AFM) and dual-mode performance exhaust (NPP) valves, this free-flowing system provides maximum exhaust pathway optimization. The classic S-Type sound profile produces a deep, rich, and aggressive V8 exhaust note under acceleration, yet relies on Borla's drone-eliminating multi-core muffler geometry to maintain total comfort during highway cruising. Constructed with a high-flow 2.75-inch inlet diameter that transitions to dual 2-inch muffler outlets, this layout maximizes exhaust gas velocity and optimizes scavenging to unlock hidden horsepower and sharpen throttle response on high-output engines.
What sets the Borla 11910 apart is its completely valve-free architecture combined with a sleek, classic tip finish. It does NOT contain functioning internal mechanical AFM or NPP valves, offering a direct, completely uninhibited pathway for spent exhaust gases. Fabricated entirely from premium, high-quality T-304 austenitic stainless steel, this setup is vastly superior to budget aftermarket alternatives or factory T-400 series alloys (such as 409) to provide permanent protection against deep rust, moisture corrosion, and structural cracking. Precision computer numerical control (CNC) manufacturing and ultra-smooth mandrel bends ensure a direct, line-to-line bolt-on slip fitment beneath your chassis. The center-exit rear section is finished with a stunning set of quad 4.25-inch round, rolled angle-cut highly polished T-304 stainless steel tips that completely fill the factory valence for an exotic, high-performance aesthetic. For a complete exhaust overhaul, this axle-back can be combined with Borla's optional mid-section X-Pipe (Part #60548) to create a full Cat-Back system.
Features
- Delivers Borla's classic, aggressive S-Type sound profile with zero interior cabin drone or harsh resonance
- Valve-Delete Configuration: Completely eliminates restrictive mechanical AFM and NPP internal exhaust valves
- Optimizes flow for vehicles with bypassed, disabled, or non-equipped factory exhaust valve systems
- Constructed entirely from premium-grade T-304 austenitic stainless steel for life-long structural integrity
- Ultra-smooth CNC mandrel bent tubing eliminates internal bottlenecks to maintain maximum exhaust velocity
- Finished with massive center-exit quad 4.25-inch round, rolled angle-cut polished T-304 stainless steel tips
- Can be combined with Borla X-Pipe (Part #60548) to convert the assembly into a full Cat-Back system
- Direct, precision-engineered bolt-on installation with a line-to-line slip fitment
- Backed by Borla's legendary Million-Mile Warranty
Fitment By Year, Make & Model
2019 Chevrolet Corvette
- 2019 Chevrolet Corvette Z06 6.2L Supercharged LT4 V8 (Coupe / Convertible, RWD, Automatic or Manual Transmission, with AFM and NPP disabled or bypassed)
- 2019 Chevrolet Corvette Grand Sport 6.2L LT1 V8 (Coupe / Convertible, RWD, MANUAL TRANSMISSION ONLY, with AFM and NPP disabled or bypassed)
2018 Chevrolet Corvette
- 2018 Chevrolet Corvette Z06 6.2L Supercharged LT4 V8 (Coupe / Convertible, RWD, Automatic or Manual Transmission, with AFM and NPP disabled or bypassed)
- 2018 Chevrolet Corvette Grand Sport 6.2L LT1 V8 (Coupe / Convertible, RWD, MANUAL TRANSMISSION ONLY, with AFM and NPP disabled or bypassed)
2017 Chevrolet Corvette
- 2017 Chevrolet Corvette Z06 6.2L Supercharged LT4 V8 (Coupe / Convertible, RWD, Automatic or Manual Transmission, with AFM and NPP disabled or bypassed)
- 2017 Chevrolet Corvette Grand Sport 6.2L LT1 V8 (Coupe / Convertible, RWD, MANUAL TRANSMISSION ONLY, with AFM and NPP disabled or bypassed)
2016 Chevrolet Corvette
- 2016 Chevrolet Corvette Z06 6.2L Supercharged LT4 V8 (Coupe / Convertible, RWD, Automatic or Manual Transmission, with AFM and NPP disabled or bypassed)
2015 Chevrolet Corvette
- 2015 Chevrolet Corvette Z06 6.2L Supercharged LT4 V8 (Coupe / Convertible, RWD, Automatic or Manual Transmission, with AFM and NPP disabled or bypassed)
Important Application & Valve Notes:
- **Grand Sport Transmission Fitment:** Fits 2017-2019 Grand Sport models equipped with a **Manual Transmission ONLY**. Does NOT fit automatic Grand Sport models due to differing rear structural clearancing.
- Fits **6.2L V8 engines** (LT4 Supercharged for Z06 / LT1 Naturally Aspirated for Grand Sport). Does not fit base Stingray models.
- **Valve-Delete Operation:** This system is built without internal mechanical valves. It is intended strictly for track or performance applications where factory AFM and NPP systems are deactivated, deleted via tuning, or not utilized.
- **Warranty Note:** Backed by Borla's Million-Mile Warranty covering all stainless steel tubing, welds, and mufflers. Because this configuration does not incorporate mechanical valves, the moving-parts wear limitations do not apply.
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
