This universal Borla performance muffler is selected by exact manufacturer part number 400491. Confirm every inlet, outlet, body, offset, clearance, finish, and fabrication requirement against the Borla drawing before ordering.

Key Features

• T-304 Stainless Steel: Resists rust and corrosion with 100% welded construction for lasting strength.
• Free-Flow Technology: Increases exhaust velocity for measurable gains in power and throttle response.
• Reversible Design: Allows flexible inlet/outlet positioning to match any exhaust layout.
• CFF Acoustic Core: Controls drone and refines tone for a deep, aggressive exhaust note.
• Pioneered stainless steel exhaust for classics like Ferrari and Rolls-Royce, now leading street and racing.
• High-grade T-304 austenitic stainless steel construction ensures rust resistance and durability under high heat.

Fitment

Specifications

What’s Included

One new Borla product identified by manufacturer part number 400491. 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 Pro-XS Muffler Oval 2.5in Inlet/Outlet Offset/Offset Notched Muffler
• Borla Universal Pro-XS Oval 2.25in Inlet / Outlet Offset Notched Muffler
• Borla Universal Pro-XS Oval 2in Inlet/Outlet Offset/Offset Notched Muffler

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.