Borla S-Type Cat-Back Exhaust System with SwitchFire Technology, Dual-Mode Valves, and Black Coated Finish (140892CB) - 2021-2026 Jeep Wrangler Rubicon 392 & Moab 392 JLU 6.4L V8
Wake up the high-performance spirit of your off-road rig with the high-impact Borla S-Type Cat-Back Exhaust System. Custom-engineered for 2021 to 2026 Jeep Wrangler Rubicon 392 and Moab 392 JLU (4-door) models equipped with the massive 6.4L HEMI V8 engine, this premium exhaust upgrade introduces Borla's legendary acoustic profile: the classic S-Type sound level. Formulated explicitly for driving enthusiasts and off-road purists who crave an aggressive, sport-tuned exhaust note under acceleration, this system provides an assertive, deep muscle-car growl while conquering the trails or cruising the highway. This configuration delivers a commanding exterior acoustic presence while relying on advanced straight-through internals backed by Borla's official No-Drone Guarantee to keep the cabin completely comfortable and drone-free during daily driving, overland travel, or high-speed desert runs.
The internal engineering of the Borla 140892CB targets key factory flow restrictions by incorporating an upgraded high-efficiency performance layout. It features a high-flow 2.75-inch inlet that smoothly transitions into dual 3-inch mandrel-bent pipelines that split into dual 2.5-inch tailpipes. At the heart of this system is Borla's patented SwitchFire technology, a unique configuration that completely eliminates the turbulent center intersection of standard X-pipes to seamlessly blend combustion pulses from both engine banks. This revolutionary architecture increases scavenging efficiency and maximizes exhaust velocity to unlock hidden horsepower, sharper throttle response, and enhanced power delivery. Built completely from premium-grade, aircraft-quality T-304 austenitic stainless steel, this highly durable assembly defends permanently against structural degradation, intense under-car heat cycling, and severe weather. The spent exhaust gases exit through a symmetric quad-exit split rear layout finished with dual 4-inch round, black coated T-304 stainless steel tips on each side. Precision CNC-manufactured for an accurate line-to-line bolt-on fitment, this system utilizes existing factory mounting positions and is backed by Borla’s legendary lifetime Million-Mile Warranty.
Premium Black Coated High-Temperature Finish: This specialized stealth-style configuration features an entire muffler assembly and tip collection treated with an elite, high-temperature black coated finish. This premium tactical coating adds an extra layer of protection against harsh trail environments and high heat cycling while blending seamlessly with your Jeep's underbody. An uncoated system featuring bright polished T-304 stainless steel tips is also available separately.
Integrated Dual-Mode Valve Technology Note: To maintain complete control over your driving environment, this system features premium built-in Dual-Mode exhaust valves. This specialized technology integrates seamlessly with your Wrangler's factory driving modes and active exhaust controls, allowing you to switch between a civilized quiet setting and a wide-open, full-throated performance bark at the push of a button. Please note that due to its extensive components, this high-performance exhaust system ships conveniently in two separate boxes.
Features
- Patented SwitchFire Technology: Advanced crossover design replaces traditional X-pipes, blending engine pulses to reduce turbulence and improve total power delivery
- Integrated Dual-Mode Valves: Fully compatible with factory active exhaust settings to easily customize sound levels on the fly
- Classic S-Type Acoustic Profile: Formulated to deliver a louder, deeper, and throatier V8 rumble under load with a highly controlled, drone-free cabin experience
- High-Flow Performance Pipeline: Tailored engineered layout features a 2.75-inch inlet flowing into dual 3-inch pipes and dual 2.5-inch tailpipes
- Full Stealth Black Coating: The entire muffler assembly and exhaust tips feature a specialized high-temperature black finish for a rugged look and maximum heat protection
- Borla No-Drone Guarantee: Advanced acoustic engineering ensures an upgraded exterior note with absolute zero cab resonance or low-frequency humming
- Constructed completely from premium-grade T-304 austenitic stainless steel for permanent structural integrity and ultimate rust resistance over low-grade 400-series options
- Blacked-Out Quad Styling: Finished with dual 4-inch round black coated T-304 stainless steel exhaust tips on both the left and right sides for an aggressive rear profile
- True Bolt-On Architecture: Precision computer-numerical control (CNC) manufacturing ensures an accurate, line-to-line fitment along factory hanger routes
- Proudly manufactured in the USA and backed by Borla's unmatched written Million-Mile Warranty
Detailed Vehicle Fitment Breakdown
Compatible Model Years & Fitment Boundaries:
This premium dual-mode quad-exit exhaust system is compatible with the following Jeep configurations under the specific chassis, transmission, engine, and trim parameters detailed below:
Jeep Wrangler Rubicon 392 & Moab 392 JLU (4-Door) Fitment:
- 2021 Jeep Wrangler Rubicon 392 (6.4L V8 - 4-Door JLU)
- 2022 Jeep Wrangler Rubicon 392 (6.4L V8 - 4-Door JLU)
- 2023 Jeep Wrangler Rubicon 392 (6.4L V8 - 4-Door JLU)
- 2024 Jeep Wrangler Rubicon 392 (6.4L V8 - 4-Door JLU)
- 2025 Jeep Wrangler Rubicon 392 (6.4L V8 - 4-Door JLU)
- 2026 Jeep Wrangler Rubicon 392 & Moab 392 (6.4L V8 - 4-Door JLU)
Engine, Drivetrain & Configuration Details:
Fits the platforms listed above across these exact structural layouts:
- Engine Configuration: 6.4L SRT HEMI V8 Gas Engine Only (Does NOT fit 2.0L Turbo, 3.6L V6, or 4xe Plug-In Hybrid models)
- Transmission Compatibility: Compatible with factory 8-speed automatic transmissions
- Drivetrain Layout: Fits 4-Wheel Drive (4WD) vehicle platforms
- Chassis Style: 4-Door JLU (Unlimited) body configurations only (Does NOT fit 2-door models)
Important Application Notes:
- **Premium Materials:** Built entirely with authentic T-304 stainless steel to deliver superior rust resistance and durability over lower-grade T-400 series choices (such as 409 stainless steel).
- **Direct Fit Integrity:** Engineered as a direct bolt-on kit that uses existing factory hangers, requiring no welding or custom fabrication for a standard installation.
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
