Borla S-Type Axle-Back Exhaust System (11855) - 2014-2019 Chevrolet Corvette C7 Stingray & Grand Sport 6.2L V8
Unleash the iconic sound of American muscle without sacrificing your sports car's advanced factory functionality with the Borla S-Type Axle-Back Exhaust System. Custom-engineered specifically for 2014 to 2019 Chevrolet Corvette C7 Stingray and Grand Sport models equipped with both Active Fuel Management (AFM) and the Performance Exhaust option (NPP), this premium aftermarket upgrade delivers a track-inspired soundtrack with zero compromises. 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 pipe diameter, this system maximizes exhaust gas velocity and optimizes scavenging to uncover hidden horsepower and sharpen throttle response.
What sets the Borla 11855 apart is its total integration of integrated exhaust valves. This system includes functional internal AFM and NPP valve mechanisms that accept your factory electronic valve actuators, allowing full retention of the Corvette's drive-mode sound changes and cylinder-deactivation capabilities. Fabricated entirely from premium, aircraft-grade 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 road salt oxidation. Precision computer numerical control (CNC) manufacturing and ultra-smooth mandrel bends ensure a direct, line-to-line bolt-on slip fitment. The center-exit rear section is finished with massive quad 4.25-inch round, rolled angle-cut intercooled highly polished T-304 stainless steel tips that completely fill out the rear valence for an exotic, high-performance look. For a complete exhaust overhaul, this axle-back can be paired 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
- Features integrated AFM and NPP mechanical exhaust valves to fully retain factory drive-mode and cylinder-deactivation functions
- Constructed from heavy-duty, premium T-304 austenitic stainless steel for permanent, life-long durability
- Ultra-smooth 2.75-inch CNC mandrel bent tubing eliminates internal bottlenecks to optimize exhaust gas velocity
- Finished with massive center-exit quad 4.25-inch round, rolled angle-cut intercooled 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 Million-Mile Warranty on non-moving parts (exhaust valves carry a 1-year warranty)
Fitment By Year, Make & Model
2019 Chevrolet Corvette
- 2019 Chevrolet Corvette Stingray 6.2L LT1 V8 (Coupe / Convertible, RWD, Auto/Manual, with AFM & NPP valves)
- 2019 Chevrolet Corvette Grand Sport 6.2L LT1 V8 (Coupe / Convertible, RWD, Automatic Transmission ONLY, with AFM & NPP valves)
2018 Chevrolet Corvette
- 2018 Chevrolet Corvette Stingray 6.2L LT1 V8 (Coupe / Convertible, RWD, Auto/Manual, with AFM & NPP valves)
- 2018 Chevrolet Corvette Grand Sport 6.2L LT1 V8 (Coupe / Convertible, RWD, Automatic Transmission ONLY, with AFM & NPP valves)
2017 Chevrolet Corvette
- 2017 Chevrolet Corvette Stingray 6.2L LT1 V8 (Coupe / Convertible, RWD, Auto/Manual, with AFM & NPP valves)
- 2017 Chevrolet Corvette Grand Sport 6.2L LT1 V8 (Coupe / Convertible, RWD, Automatic Transmission ONLY, with AFM & NPP valves)
2016 Chevrolet Corvette
- 2016 Chevrolet Corvette Stingray 6.2L LT1 V8 (Coupe / Convertible, RWD, Auto/Manual, with AFM & NPP valves)
- 2016 Chevrolet Corvette Grand Sport 6.2L LT1 V8 (Coupe / Convertible, RWD, Automatic Transmission ONLY, with AFM & NPP valves)
2015 Chevrolet Corvette
- 2015 Chevrolet Corvette Stingray 6.2L LT1 V8 (Coupe / Convertible, RWD, Auto/Manual, with AFM & NPP valves)
- 2015 Chevrolet Corvette Grand Sport 6.2L LT1 V8 (Coupe / Convertible, RWD, Automatic Transmission ONLY, with AFM & NPP valves)
2014 Chevrolet Corvette
- 2014 Chevrolet Corvette Stingray 6.2L LT1 V8 (Coupe / Convertible, RWD, Auto/Manual, with AFM & NPP valves)
- 2014 Chevrolet Corvette Grand Sport 6.2L LT1 V8 (Coupe / Convertible, RWD, Automatic Transmission ONLY, with AFM & NPP valves)
Important Application & Valve Notes:
- **EXCEPT Grand Sport with Manual Transmission:** This system does NOT fit Grand Sport models equipped with a manual transmission due to specific rear differential and cooler line routing constraints.
- Fits **6.2L LT1 V8 engines only**. Does not fit Z06 (LT4) or ZR1 (LT5) supercharged models.
- **Valve Requirements:** Designed specifically for vehicles originally equipped from the factory with **BOTH Active Fuel Management (AFM) valves and NPP Dual-Mode performance valves**. You will reuse your factory electronic actuators on this Borla system.
- **Warranty Note:** Borla's Million-Mile Warranty covers all non-moving stainless steel components. The moving exhaust valve mechanisms are warrantied separately for 1 year. Failures of the original GM factory electronic actuators themselves are not covered.
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
