This universal Borla performance muffler is selected by exact manufacturer part number 40657. Confirm every inlet, outlet, body, offset, clearance, finish, and fabrication requirement against the Borla drawing before ordering.

Key Features

• Compact Oval Body: 4.25 in. height x 7.88 in. width x 14 in. length (19 in. overall) fits restricted areas without sacrificing flow.
• Reversible Design: 2 in. offset inlet/2 in. center outlet flips for straight or angled configurations in custom installs.
• T-304 Stainless Steel: Premium austenitic material resists rust and corrosion for lifelong durability.
• 100% Welded Construction: Ensures structural integrity under high heat and pressure.
• Free Flow with CFF Acoustic Core: Boosts exhaust scavenging for power gains and controls tone with high-temp fiber packing.
• Universal application for street, off-road and racing vehicles with 2 in. piping.

Fitment

Specifications

What’s Included

One new Borla product identified by manufacturer part number 40657. 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 Performance 2.5in Inlet/Outlet Stainless Racing Muffler
• Borla Universal Performance 2.5in Inlet/Outlet Turbo XL 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.