Borla Touring Cat-Back Exhaust System with Single Square Polished Intercooled Tip (14364) - 1991-1995 Jeep Wrangler YJ 4.0L 6-Cylinder
Wake up the high-performance spirit of your classic off-road machine with the high-impact Borla Touring Cat-Back Exhaust System. Custom-engineered for 1991 to 1995 Jeep Wrangler YJ models equipped with the legendary 4.0L inline 6-cylinder engine, this premium exhaust upgrade introduces Borla's refined acoustic profile: the mellow Touring sound level. Formulated explicitly for driving enthusiasts and restoration purists who crave an upgraded, sport-tuned exhaust note without overwhelming volume, this system is calibrated to give the classic trail rig a clean, deep tone. This configuration delivers a throatier 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 highway cruising, daily commuting, or open-air trail riding.
The internal engineering of the Borla 14364 targets key factory flow restrictions by incorporating an upgraded high-efficiency single performance layout. The design features a smooth 2.25-inch primary inlet pipeline leading into the muffler that tapers into a high-flow 2-inch tailpipe structure out. At its core, this assembly features Borla's patented straight-through multi-core muffler technology, which increases exhaust gas velocity and scavenging efficiency 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 cat-back assembly defends permanently against structural degradation, intense under-car heat cycling, and mud or trail debris. 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.
Polished Intercooled Square Tip Styling: This premium single-exit kit terminates at the right rear passenger side with a highly unique 2.75-inch by 2.5-inch rectangular/square angle-cut polished T-304 stainless steel exhaust tip. Featuring an advanced intercooled dual-wall design that dissipates thermal energy efficiently, this unique tip configuration provides a sharp, customized accent beneath the classic body lines of your Wrangler YJ.
Features
- High-Flow Performance Pipeline: Balanced 2.25-inch inlet into 2-inch mandrel-bent tailpipe tubing layout removes restrictive factory boundaries and optimizes total exhaust velocity
- Mellow Touring Acoustic Profile: Formulated to deliver a deeper, throaty tone under load with a highly controlled, comfortable cabin experience
- Patented Multi-Core Straight-Through Tech: High-efficiency internal muffler geometry completely removes restrictive factory baffled layout designs to maximize flow and power
- 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
- Distinctive Intercooled Tip: Finished with a single 2.75" x 2.5" square angle-cut polished dual-wall intercooled tip exiting on the right rear passenger side
- 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 single rear-exit exhaust system is compatible with the following Wrangler configurations under the specific chassis, transmission, engine, and trim parameters detailed below:
Jeep Wrangler YJ Fitment:
- 1991 Jeep Wrangler YJ (4.0L 6-Cylinder - 2-Door)
- 1992 Jeep Wrangler YJ (4.0L 6-Cylinder - 2-Door)
- 1993 Jeep Wrangler YJ (4.0L 6-Cylinder - 2-Door)
- 1994 Jeep Wrangler YJ (4.0L 6-Cylinder - 2-Door)
- 1995 Jeep Wrangler YJ (4.0L 6-Cylinder - 2-Door)
Engine, Drivetrain & Configuration Details:
Fits the platforms listed above across these exact structural layouts:
- Engine Configuration: 4.0L Inline 6-Cylinder Gas Engine Only (Does NOT fit 2.5L 4-cylinder models)
- Chassis Model Sub-Trims: Fits 2-Door utility models (YJ chassis generation)
- Transmission Compatibility: Compatible with factory automatic and manual transmissions
- Drivetrain Layout: Fits 4-Wheel Drive (4WD) vehicle platforms
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
