This Borla axle-back exhaust system is built for the verified 1999 Mazda MX-5 Miata 10th Anniversary application listed below. Select it by exact manufacturer part number 11732 and confirm the full engine, drivetrain, body, wheelbase, factory-exhaust, and Borla application notes before ordering.

Key Features

• T-304 Stainless Steel Construction: Ensures durability and resistance to corrosion for long-lasting performance.
• Mandrel-Bent 2.25-inch Tubing: Provides smooth flow from 3.5-inch inlet/outlet for maximum efficiency.
• Straight-Through Muffler Technology: Patented multi-core design increases exhaust velocity for added horsepower and torque.
• Polished 3.5-inch T-304 Stainless Tip: Single right rear exit adds motorsport styling with precise fit.
• Direct bolt-on replacement for stock muffler; no cutting or welding required.
• Bolt-on design fits factory hangers; uses stock hardware.

Fitment

Specifications

What’s Included

One new Borla product identified by manufacturer part number 11732. Clamps, hangers, gaskets, tips, pipes, tools, and companion parts are included only when expressly listed for this exact part number.

About Borla

Borla develops stainless-steel exhaust systems, mufflers, tips, pipes, and related components for vehicle-specific and universal performance applications. Product selection remains exact-application and exact-part-number specific.

Related Borla Products

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• Borla 05-08 Corvette Convertible/Coupe 6.0L/6.2L 8cyl SS S-Type Exhaust (REAR SECTION ONLY)
• Borla 05-08 Corvette Coupe/Conv 6.0L/6.2L 8cyl 6spd RWD Touring SS Exhaust (rear section only)

Browse the Borla collection for related exhaust systems and components.

Frequently Asked Questions

Will this Borla part fit my 1999 Mazda MX-5 Miata 10th Anniversary?
That application is listed, but confirm the engine, drivetrain, body or cab style, wheelbase, factory exhaust layout, tip opening, and every Borla application note before ordering.

Will this change require an engine tune?
A cat-back, axle-back, tip, muffler, or post-catalyst component usually does not require tuning, but confirm the exact application, emissions configuration, oxygen-sensor locations, and local requirements before installation.

What should I inspect before installation?
Check the shipping carton and components against the exact part number, then inspect clamps, hangers, gaskets, mating flanges, clearances, tip alignment, and required reused factory hardware before removing the original exhaust.

Installation Instructions

Follow the current Borla instructions and vehicle service information for this exact part number. Let the exhaust cool, support the vehicle safely, compare all parts before removal, protect sensors and wiring, use the specified clamps and torque values, align all joints and tips without preload, confirm body and suspension clearance, check for leaks, and retorque after the first heat cycles. Professional installation is recommended.