This universal Borla performance muffler is selected by exact manufacturer part number 40358. Confirm every inlet, outlet, body, offset, clearance, finish, and fabrication requirement against the Borla drawing before ordering.

Key Features

• Body dimensions: 4in height x 14in length x 9.5in width; overall length 19in.
• T-304 Stainless Steel: High-grade austenitic material resists corrosion for lifelong durability in harsh conditions.
• 100% Welded Construction: Full welds ensure structural integrity and leak-free performance under high pressure.
• Free Flow Technology: Optimized internal design reduces backpressure for measurable gains in power and efficiency.
• CFF Acoustic Core: High-temperature continuous-filament fiber controls tone and volume for deep, resonant sound without drone.
• Leaders in stainless steel exhaust since 1978, starting with classics like Ferrari and Rolls-Royce.

Fitment

Specifications

What’s Included

One new Borla product identified by manufacturer part number 40358. 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

• Borla Universal 2.25in Inlet/Outlet Oval Center/Offset 14in x 4in x 9.5in ProXS Muffler
• Borla 2.5in Inlet/Outlet Center/Offset Oval ProXS Muffler
• Borla ProXS Universal Oval Muffler – Dual 2.5 Inch Inlet, Dual 2.25 Inch Outlet, 19 Inch Body

Browse the Borla collection for related exhaust systems and components.

Frequently Asked Questions

How do I confirm this universal Borla part will fit?
Match the inlet and outlet diameter, body dimensions, flow direction, offset or center layout, available clearance, material, finish, and required fabrication to the exact Borla drawing 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.