Description
ExhstSysKt
The BORLA® sound of power. Its been described as asonic shot of adrenaline. An intoxicating concert ofsteel, gears and combustion that echoes from thespeedways, deserts and highways of the world.The sound of more victory laps than any otherbrand, the BORLA® exhaust note has become the quintessentioal soundtrack of high-performance motoring. And like all good automotive designs there is function behing the form. As any driving enthusiast knows, the sound of an exhaust provides more than just ear candy. Its a communications conduit between car and driver. A link between human and machine. The exhaust sound provides accoustic feedback of engine rpm to aid the driver in critical decisions such as gear selection or throttle input in rev-match shifting. At BORLA®, we understand this concept better than any exhaust manufacturer. Combining patented technology with computer modeling, extensive prototyping and advanced sound analysis tools. BORLA® engineers spend countless hours tuning exhaust systems to best reflect the personality and performance of vehicle applications. The result is an enhanced driving experience. With unrivaled clarity, the BORLA® exhaust note can help a driver stay within the powerband through a difficult section, using the exciting sensory feedback of sound. With unrivaled clarity the Borla exhaust note can help a driver stay within the powerband through a difficult section, using the exciting sensry feedback of sound.
Additional Information
ATAK Axle-Back Exhaust System 2014-2019 Chevrolet Corvette (C7) 6.2L V8 Automatic/ Manual Transmission Rear Wheel Drive 2 Door With AFM Valves WITHOUT NPP Valves. EXCEPT Grand Sport With Manual Transmission.
Application Summary
2014-2019 Chevrolet Corvette (C7) 6.2L V8 Automatic/ Manual Transmission Rear Wheel Drive 2 Door With AFM Valves WITHOUT NPP Valves. EXCEPT Grand Sport With Manual Transmission.
Part Type
Exhaust System Kit
Product Overview
BORLA has announced the development of a revolutionary new exhaust technology that enables their engineers to deliver unprecedented vehicle-specific control over the acoustical note of an exhaust throughout the RPM range, while retaining 100% of the power-adding capabilities of BORLA's patented Multicore design.
Called ATAK (Acoustically-Tuned Applied Kinetics), this exclusive technology (U.S. patent #5,248,859) produces the highest available dB (decibel) levels in the BORLA street-legal lineup, and is designed for high-performance purists who prefer exhaust notes over their stereos. The focus of ATAK is to pump the volume while retaining clarity of sound, at the same time avoiding the drone and distortion typically found in louder exhausts. With ATAK, the sound output is tuned like a graphic equalizer to shape and focus sound waves for optimum high-volume output.
The development of each ATAK system begins with extensive study of each vehicle's acoustical properties. The technology is based on custom-tuned attributes of the internal muffler cores, which are calibrated on a vehicle-by-vehicle basis to deliver the most desirable sound. BORLA is now shipping Cat-Back and/or Rear Section ATAK exhaust systems for a wide variety of popular applications.
Like all BORLA exhaust products, each system is handmade in the USA by master craftspeople and features premium 300-Series austenitic stainless steel construction, mandrel bending by computer-controlled CNC machinery to ensure maximum flow and a perfect fit, mirror-polished tips, and a Million-Mile Warranty
| Additional Application Notes | |
|---|---|
| • Coupe; ATAK Axle-Back Exhaust System; 2.5in. Into 2.25 in.; Incl. Connecting Pipes/Mufflers/Hdw/4.25 in. x 6.13 in. Dual Round Rolled Angle-Cut Intercooled Tip; Quad Center Rear Exit; | |
| • Includes Paddle Shift w/AFM Non-NPP 2.5in. Into 2.25 in. Tubing; Incl. Connecting Pipes/Mufflers/Hrdwre/4.25in.x6.13in. Dual Round Rolled Angle-Cut Intercooled Tip; Quad Center Rear Exit; | |
These additional application notes are supplied by the manufacturer and collated from multiple year ranges. Not all of these notes may apply to every year or every variant. Please contact a StreetFX agent for clarification if required.
Data: v2 - Desc: v4.2 - Upd: 2026-11-07 17:22:16
Features
- EXCEPT Grand Sport models with Manual Transmission
- System contains AFM and NPP valves
Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.
Specifications
Product Details
| Construction: | All Welded |
| Description: | ATAK; Rear Section |
| Exhaust Type: | Axle-Back System |
| Exit Position: | Center |
| Exit Style: | Quad Center Rear Exit |
| Grade Type: | Performance |
| Inlet Inside Diameter: | 2.750 in. |
| Inlet Size (in.): | 2.75 |
| Material: | T-304 Stainless Steel |
| Muffler Type: | Straight-Through |
| Off Road Use Only: | No |
| Outlet Outside Diameter: | 2.750 in. |
| Outlet Size (in.): | 2.75 |
| Part Number: | bor11863 |
| System Type: | Axle Back |
| Tail Pipe Diameter: | 2.500 in. |
| Tail Pipe Material: | Stainless Steel |
| Tip / Outlet Finish: | Polished T-304 Stainless Steel |
| Tip Diameter: | 4.250 in. |
| Tip Size: | 4.25in |
| Title Extended: | C7 Corvette Stingray 2014-2019 Axle-Back Exhaust System ATAK Part # 11863 |
| Title: | 2014-2019 Chevrolet Corvette Stingray C7 Axle-Back Exhaust System ATAK |
| Tubing Diameter: | 2.500 in. |
Reference Information
| Reference Data (Provide these details to our support team) | |
|---|---|
| Brand Name/s | Borla, Borla Exhaust |
| StreetFX SKU | bor11863 |
| SFX Item ID | 4225256 |
| Accounting SKU | bor-11863 |
| Manufacturer SKU | 11863 |
| Manufacturer UPC | 808422118637 |
| Alternative References | 11863, BOR-11863 |
Exhaust System, ATAK, Rear Section, Dual In/Four Out, Stainless, Natural, Rear Center Exit, Chevy, 6.2L, Kit
Borla’s axle-back system features T-304 stainless steel construction with polished tips and their patented straight-through and multi-core technology designed to unleash hidden horsepower. Ultra-smooth mandrel bends ensure maximum flow and power, while the precision computer-controlled CNC manufacturing ensures an accurate fit. The increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive Borla “Sound of Power” respected by motoring enthusiasts everywhere. Pair your Corvette with a system that’s best in performance, durability, sound, and style--a Borla axle-back system.
This Borla axle-back system includes the AFM valves but does NOT include the NPP valves. It should be used on vehicles that are NOT equipped with NPP.
| Product Attributes | |
|---|---|
| UPC | 808422118637 |
| Brand | Borla |
| Notes | For cars without the NPP dual mode exhaust option. The AFM valves are still used in this system. |
| Tip Cut | Slant intercooled |
| Quantity | Sold as a kit. |
| Part Type | Exhaust Systems |
| Tip Shape | Round |
| Tip Finish | Polished |
| Exhaust Type | Dual in/Four out |
| Product Line | Borla ATAK Axle-Back Exhaust Systems |
| System Style | Rear section |
| Tip Included | Yes |
| Tip Material | 304 stainless steel |
| Tip Quantity | 4 |
| Exit Location | Rear center |
| Muffler Style | Turbo |
| System Finish | Natural |
| Inlet Quantity | 2 |
| Muffler Finish | Natural |
| Tip Edge Style | Rolled edge |
| System Material | 304 stainless steel |
| Muffler Included | Yes |
| Muffler Material | 304 stainless steel |
| Muffler Quantity | Two |
| Hardware Included | Yes |
| Special Attention | It is illegal to install parts or components that bypass, defeat, or render inoperative the manufacturers’ technology and design necessary to reduce vehicle emissions to meet state and federal Clean Air Act standards. |
| Muffler Configuration | Single inlet/Dual outlet |
| Tip Outlet Size (in.) | 4.25 |
| Tailpipe Diameter (in.) | 2.00 in. |
| Manufacturer's Part Number | 11863 |
| Catalytic Converter(s) Included | No |
| Intermediate Pipe Diameter (in.) | 2.75 in. |
Brochures
Compatibility
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