-10%
Borla Pro-XS 2in Tubing 14in x 4in x 9.5in Oval Center/Offset Muffler-Borla-BOR40344
Click to zoom in

Borla Pro-XS 2in Tubing 14in x 4in x 9.5in Oval Center/Offset Muffler

Borla
BOR40344
808422403443
Muffler
4 Units In Stock - Ships Next Business Day
$ 143.99 $ 128.99
$ 128.99

SKU: 40344   |   UPC: 808422403443

Borla ProXS Muffler 2in Offset Inlet/2in Center Outlet 4in x 9.5in Oval x 14in Long Body #40344

The Borla 40344 ProXS Muffler is a universal oval performance muffler with 2-inch offset inlet/2-inch center outlet in a reversible design, 4 x 9.5-inch oval body, 14-inch body length and 19-inch overall length. Built for custom exhaust systems on cars, trucks and SUVs with 2-inch piping, it provides the Borla Sound of Power, increases in horsepower and torque, better fuel economy and responsive throttle feel. Add motorsport styling and a heart-pounding exhaust note to any ride.

Key Features

  • Reversible Design: Configure as offset inlet/center outlet or center inlet/offset outlet for installation flexibility in tight spaces.
  • T-304 Stainless Steel: Austenitic construction resists rust and corrosion for long-lasting performance in all conditions.
  • 100% Welded Build: Full welds ensure maximum strength and durability under high heat and pressure.
  • Free Flow Technology: Mandrel-bent internals improve exhaust scavenging for power and torque gains across RPM range.
  • CFF Acoustic Core: High-temperature continuous-filament fiber controls sound levels while maintaining flow efficiency.

Product Notes

  • Universal part suitable for custom exhaust fabrication; verify 2-inch piping compatibility.
  • Natural mill finish allows brushing or polishing before install for custom look.
  • Ships in protective packaging; 7.8 lbs product weight.

Installation Notes

  • Professional installation recommended.
  • Slip-fit necks work with clamps or welding on 2-inch exhaust pipe.
  • Reversible orientation simplifies routing in center or rear muffler positions.

This Part Fits

Year Make Model Submodel
Universal Various Custom Exhaust 2in Piping Vehicles

Why Choose Borla?

  • Pioneer and leader in stainless steel performance exhaust for street, off-road and racing.
  • Boosts power, torque, fuel economy and engine life with every upgrade.
  • Engineered for the thrill of throttle response and distinctive exhaust soundtrack.

Frequently Asked Questions

  • Q: What vehicles fit the Borla 40344 ProXS Muffler?
    A: Universal design for custom installs on most cars, trucks and SUVs with 2-inch exhaust piping; measure your system for exact match.
  • Q: What material and finish does it have?
    A: T-304 austenitic stainless steel with natural mill finish; polish or brush as desired, resists rust indefinitely.
  • Q: What warranty covers this muffler?
    A: Backed by Borla's Million-Mile Limited Warranty against manufacturing defects when installed and used properly.

Shipping & Handling

  • Method: Ground shipping via UPS or FedEx
  • Availability: In stock - ships same or next business day
  • Packaging: Secure Borla box, 20.5 x 10.5 x 5 inches
  • Weight: 7.8 lbs
Read More
Read Less

Request For Information

Have questions about ? Fill out the form below and we'll get back to you by the next business day.
Borla

Borla

Discover the Borla Exhaust Systems collection at Black Ops Auto Works, featuring premium American-made exhaust solutions engineered for superior performance, sound, and durability. With decades of innovation and multiple U.S. patents, Borla exhaust systems are trusted by enthusiasts seeking aggressive tone, optimized airflow, and vehicle-specific fitment. Borla Cat-Back & Axle-Back Exhaust Systems Upgrade your vehicle’s sound and performance with Borla cat-back exhaust systems engineered to deliver increased horsepower, improved exhaust flow, and signature Borla tone. For targeted sound enhancement and rear-section upgrades, explore Borla axle-back exhausts, designed for easy installation and refined acoustics. Borla Mufflers, Resonators & Exhaust Components Fine-tune exhaust tone and volume using Borla performance mufflers and Borla exhaust resonators, precision-tuned for optimal sound control and airflow efficiency. Supporting components like Borla mid-pipes, X-pipes, and ... View Our Borla Products...
Exhaust Systems

Exhaust Systems

Find the right performance exhaust system for your car, truck, or SUV with our curated selection of stainless-steel upgrades engineered for power, sound, and reliability. Browse proven layouts like cat-back, axle-back, and turbo-back systems, dial in flow with headers & manifolds and downpipes, or tailor your tone with mufflers & resonators and polished exhaust tips. We also stock emissions-minded solutions including direct-fit catalytic converters and universal catalytic converters. Shop top brands such as Akrapovič, AWE Tuning, Borla, Invidia, GReddy, Perrin, Banks Power, and Gibson. Every option is selected for quality construction (think mandrel-bent tubing and precise welds) and bolt-on fitment, and our Year/Make/Model search makes it easy to match parts to your build—upgrade throttle response, unlock a deeper, refined exhaust note, and enhance your vehicle’s style with components that deliver performance you can feel. View Our Exhaust Systems Products...
Mufflers

Mufflers

Welcome to our Mufflers collection, where performance meets style. Our curated selection offers a variety of mufflers to enhance your vehicle’s sound and efficiency. Whether you’re looking for a subtle upgrade or a loud statement piece, we have the perfect options for you. Why Choose Our Mufflers? High-Quality Materials: Crafted from durable materials to ensure longevity and reliability. Performance Enhancement: Designed to improve your vehicle’s exhaust flow and overall performance. Stylish Designs: Available in various styles to suit your personal taste and vehicle aesthetics. Easy Installation: Many of our mufflers come with easy-to-follow installation instructions for a hassle-free upgrade. Featured Products Check out some of our top-selling mufflers: Performance Muffler X1: Boosts horsepower while providing a deep, aggressive sound. Eco-Friendly Muffler Series: Designed to reduce emissions without compromising on performance. Customizable Muffler Kit: Personalize you... View Our Mufflers Products...
Mufflers & Resonators

Mufflers & Resonators

Welcome to our exclusive Mufflers & Resonators collection! We have meticulously curated options to cater to all automotive enthusiasts. Whether you seek to enhance your vehicle's sound, improve performance, or simply replace worn-out parts, you'll find the perfect solutions here. Why Choose Our Mufflers & Resonators? High Quality: Each product is made from durable materials ensuring longevity. Enhanced Performance: Our selection is designed to improve exhaust flow for better horsepower. Sound Customization: Choose from a variety of sounds to match your style—from aggressive to subtle. Easy Installation: Most products come with straightforward installation instructions. Shop Our Top Products Explore some of our best-selling Mufflers & Resonators: Performance Muffler Series High-Flow Resonators Universal Muffler Kits Custom Exhaust Systems Customer Satisfaction Guaranteed We pride ourselves on providing excellent customer service. Our team is here to help you ch... View Our Mufflers & Resonators Products...

Your cart

×