Specifications
- Brand
- Borla
- Part #
- 400499
- UPC
- 808422004992

Borla Universal Pro-XS Muffler Oval 3in Inlet/ 2.5in Dual Outlet Transverse Flow Notched Muffler
$398.99
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Borla Pro-XS Transverse Flow Muffler. Universal fit, 3" inlet, dual 2.5" outlets. Known for performance and durability.
Key Features
- Fits: Universal fitment for custom exhaust systems.
- Design: Transverse flow muffler, originally for GM F-Body vehicles, can be used for custom builds.
- Inlet/Outlet: Single 3" offset inlet and dual 2.5" offset outlets.
- Construction: Made from T-304 austenitic stainless steel for rust resistance and durability.
- Installation: Notched necks designed for clamp-on installation with band clamps (not included).
- Reversible: Can be installed in either direction for installation flexibility.
⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more
Product Details
Borla has been a leader in aftermarket performance exhausts for over 30 years, known for their high-quality stainless steel systems and race-winning technology. This Pro-XS muffler is a universal option that utilizes a transverse flow design, originally developed for GM F-Body Camaros and Firebirds. It's a great choice if you're building a custom exhaust system and need a compact, efficient muffler that can be mounted parallel to the axle.
This muffler features a single 3-inch offset inlet and dual 2.5-inch offset outlets, with one outlet on the same end as the inlet and the second on the opposite end. The notched necks are designed for a clamp-on installation, making it easier to integrate into your custom setup. Constructed from T-304 austenitic stainless steel, it's built to resist rust and ensure long-term durability. The 100% welded construction adds strength, while the free-flow design aims for improved performance. Inside, high-temperature continuous-filament fiber acoustic material helps manage sound.
The natural mill finish can be brushed or polished before installation to achieve your desired look. This muffler is reversible, offering flexibility during installation. It's made in the USA and backed by Borla's Million-Mile warranty, reflecting their commitment to quality and performance.
Specifications
- Brand
- Borla
- Manufacturer Part #
- 400499
- UPC
- 808422004992
Frequently Asked Questions
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Borla Universal Pro-XS Muffler Oval 3in Inlet/ 2.5in Dual Outlet Transverse Flow Notched Muffler
