Borla 40657 Pro-XS Universal 2" Performance Muffler (Center In/Offset Out)

Product Overview

• Borla 40657 Pro-XS™ Universal Performance Muffler - 2" Center Inlet / 2" Offset Outlet

Features

• Premium T-304 stainless steel construction for corrosion resistance and long life
• Universal fit for custom exhaust systems - not tied to specific vehicles
• 2" center inlet and 2" offset outlet for common aftermarket exhaust piping setups
• Oval body (14" x 4.25" x 7.88") with 19" overall length for performance and fit flexibility
• Reversible design allows flexible installation orientation
• Pro-XS™ internal design provides a performance-oriented exhaust tone and flow
• Un-notched necks support weld-in installation (use proper clamps if needed) 
• 100% welded construction for strength and durability with continuous-filament fiber (CFF) acoustic packing for sound control :contentReference[oaicite:1]{index=1}
• Made in the USA and backed by Borla's Million-Mile Warranty

Specifications

• Part Number: 40657
• Material: T-304 Stainless Steel
• Inlet Diameter: 2" (center)
• Outlet Diameter: 2" (offset)
• Body Shape: Oval
• Body Dimensions: 14" x 4.25" x 7.88"
• Overall Length: 19"
• Design: Pro-XS™ universal performance muffler
• Fitment Type: Universal / custom exhaust systems

Included Components

• 1x Borla 40657 Pro-XS™ universal performance muffler

Product Description

The **Borla 40657 Pro-XS™ Universal Performance Muffler** is engineered for custom exhaust systems and aftermarket applications where a performance-oriented muffler with strong flow and aggressive tone is desired. With a **2" center inlet and 2" offset outlet**, this muffler can be integrated into a variety of custom exhaust layouts, making it versatile for builds on classic cars, street machines, or modified vehicles.

Constructed from premium **T-304 stainless steel** with a fully welded body, the 40657 delivers durability and corrosion resistance. The Pro-XS™ internal design promotes enhanced exhaust flow while shaping a bold sound that's louder than touring-style mufflers but balanced for street use. Its reversible design offers flexibility in installation orientation, and the un-notched necks are suited for weld-in installation or can be fitted with appropriate band clamps. Backed by Borla's **Million-Mile Warranty**, this universal performance muffler is a solid choice for custom exhaust systems where space, tone, and performance matter most.