Borla Touring Dual Cat-Back Exhaust System with Brushed Turn Down Pipes (14139) - 1987-1993 Ford Mustang GT 5.0L V8 Fox Body
Wake up the high-performance spirit of your classic Fox Body with the high-impact Borla Touring Cat-Back Exhaust System. Custom-engineered for 1987 to 1993 Ford Mustang GT models equipped with the legendary 5.0L High Output V8 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 pushrod V8 engine a clean, deep muscle car 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 spirited weekend drives.
The internal engineering of the Borla 14139 targets key factory flow restrictions by incorporating an upgraded high-efficiency dual performance layout. The design features a stepped configuration that transitions smoothly from a dual 2.25-inch primary section into a highly efficient 2-inch tailpipe structure. 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 corrosion. 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.
Classic Stealth Turn Down Tailpipes: This premium cat-back system is engineered specifically for the unique rear bumper geometry of Fox Body Mustang GT models. Rather than utilizing extended rear tips that exit past the lower valence, this kit features subtle 2-inch brushed T-304 stainless steel turn down pipes that point downward underneath the rear bumper. This classic configuration hidden away out of sight preserves your Mustang GT's original factory profile while delivering a massive upgrade in exhaust flow and tone.
Features
- High-Flow Performance Pipeline: Balanced dual stepped 2.25-inch to 2-inch mandrel-bent tubing layout removes restrictive factory boundaries and optimizes total exhaust velocity
- Mellow Touring Acoustic Profile: Formulated to deliver a deeper, throats muscle car 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
- Subtle Turn Down Architecture: Finished with classic 2-inch brushed T-304 stainless steel turn down pipes that dump cleanly below the rear fascia for a clean, factory-hidden look
- 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 rear-exit exhaust system is compatible with the following Mustang configurations under the specific chassis, transmission, engine, and trim parameters detailed below:
Ford Mustang GT Fitment:
- 1987 Ford Mustang GT (5.0L V8 - Coupe / Convertible)
- 1988 Ford Mustang GT (5.0L V8 - Coupe / Convertible)
- 1989 Ford Mustang GT (5.0L V8 - Coupe / Convertible)
- 1990 Ford Mustang GT (5.0L V8 - Coupe / Convertible)
- 1991 Ford Mustang GT (5.0L V8 - Coupe / Convertible)
- 1992 Ford Mustang GT (5.0L V8 - Coupe / Convertible)
- 1993 Ford Mustang GT (5.0L V8 - Coupe / Convertible)
Engine, Drivetrain & Configuration Details:
Fits the platforms listed above across these exact structural layouts:
- Engine Configuration: 5.0L High Output (H.O.) V8 Gas Engine Only (Does NOT fit 2.3L 4-cylinder models)
- Chassis Model Sub-Trims: Fits 2-Door Hatchback (Fastback/Coupe) and 2-Door Convertible GT models
- Transmission Compatibility: Compatible with factory automatic and manual transmissions
- Drivetrain Layout: Fits Rear-Wheel Drive (RWD) 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
