Description
ExhstSysKt
This 3.5" diameter into dual 2.25" Cat-Back™ system delivers the aggressive ATAK® sound with no drone inside the vehicle. The system features single 4" round bright chrome on T-304 stainless steel tips on each tail pipe. A system with black chrome on T-304 stainless stee tips is also available. BORLA® Cat-Back™ & Axle-Back multi-core technology is designed to unleash hidden horsepower. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive BORLA® Sound of Power respected by motoring enthusiasts everywhere. Each system is built from premium T-304 stainless steel, superior to T-400 series knockoffs (such as 409), to give you the absolute best in performance and durability. Ultra-smooth mandrel bends ensure maximum flow & power, and precision computer numerical control (CNC) manufacturing ensures an accurate fit. Best of all, BORLA® stands behind every system with a Million-Mile Warranty. Just what you'd expect from the world's most experienced (and most winning) exhaust brand.
Additional Information
ATAK Cat-Back Exhaust System 2014-2018 Chevrolet Silverado 1500/ GMC Sierra 1500 6.2L V8 Automatic/ Manual Transmission 2 & 4WD Extended Cab With Standard Bed (6' 7") 143.5" Wheelbase/ Crew Cab with Short Bed (5' 9") 143.5" Wheelbase.
Application Summary
2014-2018 Chevrolet Silverado 1500/ GMC Sierra 1500 6.2L V8 Automatic/ Manual Transmission 2 & 4 Wheel Drive Extended Cab With Standard Bed (6' 7") 143.5" Wheelbase/ Crew Cab With Short Bed (6' 9") 143.5" Wheelbase.
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 | |
|---|---|
| • 3.5 in. Into Muffler Dual 2.0 in. Out; Incl. Connecting Pipe/Muffler/Hardware/4 in. Round x 12 in. Long Dual Rolled Angle Cut Long; Side Exit; | |
| • T-304 Stainless Steel 3.5 in. Into Muffler Dual 2.25 in. Out; Incl. Connecting Pipe/Muffler/Hardware/4 in. Round x 12 in. Long Dual Rolled Angle Cut Long; Side Exit;50 State Legal / California Emissions Compliant 3.5 in. Into Muffler Dual 2.0 in. Out; Incl. Connecting Pipe/Muffler/Hardware/4 in. Round x 12 in. Long Dual Rolled Angle Cut Long; Side Exit; | |
| • T-304 Stainless Steel Crew Cab Pickup; 69.3in Bed Length; 143.5in Wheelbase; 3.5 in. Into Muffler Dual 2.25 in. Out; Incl. Connecting Pipe/Muffler/Hardware/4 in. Round x 12 in. Long Dual Rolled Angle Cut Long; Side Exit;50 State Legal / California Emissions Compliant 3.5 in. Into Muffler Dual 2.0 in. Out; Incl. Connecting Pipe/Muffler/Hardware/4 in. Round x 12 in. Long Dual Rolled Angle Cut Long; Side Exit; | |
| • Crew Cab Pickup; 69.3in Bed Length; 143.5in Wheelbase; 3.5 in. Into Muffler Dual 2.0 in. Out; Incl. Connecting Pipe/Muffler/Hardware/4 in. Round x 12 in. Long Dual Rolled Angle Cut Long; Side Exit; | |
| • Crew Cab Pickup; 69.3in Bed Length; 143.5in Wheelbase; | |
| • Extended Cab Pickup; 78.8in Bed Length; 143.5in Wheelbase; | |
| • Extended Cab Pickup; 78.8in Bed Length; 143.5in Wheelbase; 3.5 in. Into Muffler Dual 2.0 in. Out; Incl. Connecting Pipe/Muffler/Hardware/4 in. Round x 12 in. Long Dual Rolled Angle Cut Long; Side Exit; | |
| • Crew Cab Pickup; 69.3in Bed Length; | |
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 17:22:11
Features
Important Notice relating to US Domestic Market Trucks & Pickups
Many US-market trucks and pickups are available in multiple cab and bed-length configurations (e.g., Single Cab, Extended Cab, Double/Crew Cab, CrewMax, 5.5ft/6.5ft/8ft beds, etc.). Exhaust system fitment can vary between these chassis versions.
Where available, we list all compatible vehicles, cab types, and bed lengths in the product description. However, depending on your exact configuration, some systems may require optional extension/mid-pipes or minor modification for correct fitment.
Because of these variations, please carefully check your cab configuration and bed length before purchasing. If you are unsure, or if your vehicle has been modified, please reach out to a StreetFX agent.
(keyword: side exit)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: | Cat-Backâ„¢ ATAK System |
| Exhaust Type: | Cat-Back(tm) System |
| Exit Position: | Side |
| Exit Style: | Truck Side Exit |
| Grade Type: | Performance |
| Inlet Inside Diameter: | 3.500 in. |
| Inlet Size (in.): | 3.5 |
| Material: | T-304 Stainless Steel |
| Muffler Type: | Straight-Through |
| Off Road Use Only: | No |
| Outlet Outside Diameter: | 2.250 in. |
| Outlet Size (in.): | 2.25 |
| Part Number: | bor140577 |
| System Type: | Cat Back |
| Tail Pipe Diameter: | 2.250 in. |
| Tail Pipe Material: | Stainless Steel |
| Tip / Outlet Finish: | Polished T-304 Stainless Steel |
| Tip Diameter: | 4 in. |
| Tip Size: | 4.0in |
| Title Extended: | Silverado/ Sierra 1500 2014-2018 Cat-Back(tm) Exhaust System ATAK Part # 140577 |
| Title: | 2014-2018 Chevrolet Silverado 1500/ GMC Sierra 1500 Cat-Back(tm) Exhaust System ATAK |
| Tubing Diameter: | 3.500 in. |
Reference Information
| Reference Data (Provide these details to our support team) | |
|---|---|
| Brand Name/s | Borla, Borla Exhaust |
| StreetFX SKU | bor140577 |
| SFX Item ID | 4225202 |
| Accounting SKU | bor-140577 |
| Manufacturer SKU | 140577 |
| Manufacturer UPC | 808422405775 |
| Alternative References | BOR-140577 |
Exhaust System, ATAK, Cat-Back, Single In/Dual Out, Stainless Steel, Natural, Side Exit, Chevy, GMC, 6.2L, Kit
Mount an offensive to regain optimum acoustics with Borla ATAK cat-back systems. Your modern muscle car will not only be performance-enhanced, but also acoustically tuned to a loud, aggressive exhaust note. ATAK (acoustically tuned applied kinetics) technology produces the highest dB levels, avoiding distortion to retain clarity.
Tuned like a graphic equalizer, these cat-back systems are custom-tuned for your specific vehicle, delivering the most desirable sound to your ears. Plus, you retain all of the power-adding capabilities of Borla's multi-core design. The exhausts are handmade by master craftsmen from premium 300-Series austenitic stainless steel and ultra-smooth, mandrel-bent piping.
| Product Attributes | |
|---|---|
| UPC | 808422405775 |
| Brand | Borla |
| Notes | Will only fit the 143.50 in. wheel base. |
| Tip Cut | Slant |
| Quantity | Sold as a kit. |
| Part Type | Exhaust Systems |
| Tip Shape | Round |
| Tip Finish | Polished |
| Exhaust Type | Single in/Dual out |
| Product Line | Borla ATAK Cat-Back Systems |
| System Style | Cat-back |
| Tip Included | Yes |
| Tip Material | 304 stainless steel |
| Tip Quantity | 2 |
| Exit Location | Passenger side |
| Muffler Style | Turbo |
| System Finish | Natural |
| Inlet Quantity | 1 |
| Muffler Finish | Brushed |
| Tip Edge Style | Rolled edge |
| System Material | 304 stainless steel |
| Muffler Included | Yes |
| Muffler Material | 304 stainless steel |
| Muffler Quantity | One |
| 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.) | 4.00 |
| Tailpipe Diameter (in.) | 2.25 in. |
| Manufacturer's Part Number | 140577 |
| Catalytic Converter(s) Included | No |
| Intermediate Pipe Diameter (in.) | 3.50 in. |
Brochures
Compatibility
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