Borla 140557 Touring Cat-Back Exhaust for 2015-2020 Chevy Tahoe 5.3L

Vehicle Fitment

• 2015-2020 Chevrolet Tahoe 1500 (5.3L V8, Automatic Transmission, 2WD & 4WD, 4-Door - All Trims: LS, LT, LTZ, PPV, SSV)
• 2015-2018 GMC Yukon (5.3L V8, Automatic Transmission, 2WD & 4WD, 4-Door - SLE, SLT Trims)

Fitment Notes

• This system fits the 5.3L V8 Tahoe and standard Yukon only. It does NOT fit the GMC Yukon Denali (6.2L V8) or the Cadillac Escalade - those applications require a dedicated Borla system (see Borla 140559/140560). It also does NOT fit the 2019-2020 GMC Yukon, which uses a different exhaust routing.
• 50-State Legal - California CARB emissions compliant. This system can be legally sold and installed in all 50 states including California.
• Automatic transmission only - manual transmission applications are not confirmed for this platform/year range.
• The front extension pipe in this system includes a high-quality flex coupling that accommodates drivetrain and chassis flex, preventing stress cracks in the exhaust tubing under normal operating conditions.
• Exit location is truck side (passenger side) - a single tip exits on the driver's right side of the bumper, matching the factory exhaust exit location on these vehicles.
• Sold as a complete cat-back kit - includes all hardware required for installation.

Features

• Borla Touring sound character - the Touring designation delivers a refined, mellow enhancement over the stock exhaust note, with a deeper, more resonant V8 tone that is distinctly improved over factory without becoming excessive or antisocial. No cruising drone inside the cabin under any operating condition.
• Patented straight-through and multi-core muffler technology - Borla's internally-patented muffler core design eliminates the baffles and chambers found in conventional mufflers, allowing exhaust gases to pass through with significantly less restriction while using internal geometry to tune the sound character without the harsh drone-inducing resonance of straight-pipe designs.
• 2.75" inlet to dual 2.25" outlet pipe routing - larger than the factory system's cross-sections, the increased diameter reduces exhaust velocity restriction, improving scavenging efficiency and adding measurable gains in power, torque, and throttle response across the RPM range.
• Single 4.0" bright chrome tip per side - 12" long rolled angle-cut round tips in bright chrome over T-304 stainless steel substrate are welded to the tail pipes for a permanent, vibration-free finish that resists corrosion and complements the factory bumper valance on Tahoe/Yukon applications.
• T-304 austenitic stainless steel construction throughout - Borla's aircraft-grade alloy contains higher nickel and carbon content than T-409 or aluminized steel, providing superior resistance to high-cycle heat, thermal stress, and corrosion in all climates for the lifetime of the vehicle.
• CNC mandrel-bent tubing - ultra-smooth bends maintain a consistent internal diameter through every curve, eliminating the turbulence-inducing pinching of crush-bent OEM exhaust tubing and maximizing exhaust gas flow velocity.
• CNC-precision manufacturing - computer-controlled fabrication ensures dimensional accuracy throughout the system, providing the factory-quality fitment tolerances that allow true bolt-on installation with no gap-filling, shimming, or fitment adjustment required.
• Integral flex coupling in extension pipe - the built-in flex joint absorbs chassis movement, vibration, and drivetrain torque reactions without transmitting stress into the rigid stainless steel tubing, extending the life of the system in all driving conditions.
• Made in the USA - designed, engineered, and manufactured domestically by Borla Performance Industries.

Specifications

• Part Number: 140557
• Series: Borla Touring
• System Type: Cat-Back (from catalytic converters to tailpipe tips)
• Application: 2015-2020 Chevrolet Tahoe 1500 / 2015-2018 GMC Yukon - 5.3L V8 - Auto - 2WD & 4WD
• Sound Level: Touring (mellow/refined - quietest of Borla's performance sound levels)
• Exhaust Configuration: Single In / Dual Out
• Inlet Pipe Diameter: 2.75 inches
• Outlet Tail Pipe Diameter: Dual 2.25 inches
• Exit Location: Truck Side (Passenger Side)
• Tip Quantity: 2 (one per side)
• Tip Size: 4.0 inches round
• Tip Length: 12 inches
• Tip Style: Rolled Angle-Cut, Bright Chrome on T-304 Stainless Steel
• Extension Pipe: Includes High-Quality Flex Coupling
• System Material: T-304 Austenitic Stainless Steel
• Catalytic Converters Included: No
• Hardware Included: Yes
• Emissions: 50-State Legal (CARB Compliant)
• Country of Origin: USA
• Warranty: Million-Mile Limited Warranty (original purchaser)

Included Components

• 1x Borla Touring Muffler with Mandrel-Bent Connecting Pipe (T-304 Stainless Steel)
• 1x Extension Pipe with High-Quality Flex Coupling (T-304 Stainless Steel)
• 2x 4.0" Bright Chrome Round Rolled Angle-Cut Long Tips (12", welded to tail pipes)
• 1x Hardware and Clamp Kit

Product Description

The Borla 140557 Touring Cat-Back Exhaust System is designed specifically for the 2015-2020 Chevrolet Tahoe 1500 and 2015-2018 GMC Yukon equipped with the 5.3L V8, delivering a meaningful improvement in exhaust sound and performance while staying firmly within the refined, daily-driver character that full-size SUV owners demand. The Touring designation sits at the measured end of Borla's sound spectrum - delivering a noticeably deeper, more resonant V8 exhaust note over the muted factory system without introducing the volume or drone of a sport-oriented exhaust. Borla's patented straight-through and multi-core muffler technology eliminates the resonance frequencies that cause drone in the cabin at cruise speed, so the system sounds great when you want it to and stays composed when you don't.

The system routes 2.75" mandrel-bent T-304 stainless steel tubing from the factory catalytic converters through a single application-specific Touring muffler, exiting dual 2.25" tail pipes through a pair of 4.0" bright chrome round rolled angle-cut tips on the passenger side of the bumper - mirroring the factory single-side exit layout. The extension pipe includes a built-in high-quality flex coupling to absorb drivetrain movement and chassis flex, protecting the rigid stainless steel system from stress fractures over the vehicle's life. Every dimension is CNC-machined and mandrel-bent to precise tolerances for a bolt-on installation that uses the factory mounting points and rubber isolators with no cutting or modification to the vehicle required.

This system is 50-state legal and CARB compliant, making it one of the few performance exhaust options available for the Tahoe/Yukon platform that can be legally installed in California. Note that this system fits only the 5.3L V8 standard Tahoe and Yukon (SLE/SLT) - it does not fit the Yukon Denali (6.2L), Cadillac Escalade, or 2019+ Yukon. Backed by Borla's written Million-Mile Warranty and made in the USA, the 140557 is a refined, long-lasting performance exhaust upgrade built to the same standards as Borla's motorsport-derived systems.