Borla 400487 - ProXS Series Muffler (3" ID Center/2.5" OD Dual)

Part ##400487

Borla 400487 - ProXS Series Muffler (3" ID Center/2.5" OD Dual)

Part ##400487
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Product Info

The Borla ProXS Series Mufflers are crafted from high-quality T-304 stainless steel for superior strength and durability. These mufflers have a straight through design that is combined with continuous filament fiber acoustic material to give you an awesome sound. They have a reversible design that provides you with installation flexibility. If you want a muffler that will give you more power, better fuel mileage, prolonged engine life, and that terrific growl then you should get this Borla ProXS Series Mufflers. These mufflers can be used for almost any vehicle application. Install the Borla ProXS Series Mufflers and get that mean machine growling.


  • Sound Level: Aggressive / Loud
  • Muffler Configuration: Center/Dual
  • Shape: Oval
  • Inlet Diameter: 3"
  • Outlet Diameter: 2.5"
  • Body Length: 19"
  • Body Width: 9.5"
  • Body Height: 4"
  • Overall Length: 23"
  • Material: Stainless Steel
  • Notched


  • T-304 stainless steel construction
  • Completely welded for strength and durability
  • Free-flowing design for unparalleled performance
  • High-temperature continuous-filament fiber (CFF) acoustic material for absolute sound control
  • Reversible design for installation flexibility
  • Recommended for car, SUV, and truck applications

P65 Warning: This product can expose you to chemicals which are known to the State of California to cause cancer or other reproductive harm. Please visit for more information.

Highly regarded for their outstanding performance exhausts, Borla Industries has been the go-to designer and manufacturer of custom vehicle builders all over the globe since 1979. Established by the creative minds of Alex and Alyse Borla, the company aims to provide users everything they need to maximize their vehicle's potential. Whether it's for off-road or race applications, Borla provides quality elements that when integrated to your system will significantly boost your vehicle's horsepower levels and enhance gas mileage. From exceptional cat back systems to progressive headers, the brilliant innovations by Borla are constructed using durable, aircraft quality stainless steel certifying an extensive lifespan. These components remove all hassles as they are methodically built to effortlessly create a precise fitment.

The company has established well developed facilities with the most knowledgeable engineers working hard on a daily basis to ensure the most modern and effective solutions are produced. Adding to that, Borla is a promoter of safe and responsible racing as their products are embedded with a superior technology that significantly boosts overall security. That's not all though, their products are guaranteed excellence as they are backed with a Million Mile warranty. For all the high quality parts needed by your custom system, look no further than the reliable and awe-inspiring designs by Borla.

Warranty Information

Borla Performance Industries, Inc. warrants its products to the original purchaser of record and for the original vehicle on which the product was installed against defects in materials and workmanship for one million miles with the following exceptions. BORLA will warranty BORLA catalytic converters, black tips and all moving parts, such as valves and actuators, for three years. This does not include blemishes or marring of appearance due to weather, road hazards, lack of maintenance or extremes of heat or cold. This warranty shall apply only if BORLA's examination of the returned product discloses a manufacturing or material defect, and BORLA's sole obligation under this warranty shall be limited to repair or replacement at BORLA's option. Note all attachment to universal mufflers must be made at the nipples; there should be no welding to the shell or end caps as this will void the warranty. No expressed or implied warranties of merchantability or fitness for a particular purpose are hereby made except as otherwise expressly provided herein. In no event shall BORLA PERFORMANCE INDUSTRIES, INC. or any BORLA Dealers or Distributors be liable for any loss, inconvenience or damage, whether direct, incidental, consequential or otherwise. Because sound is subjective, Borla does not provide warranty for sound.

This warranty does not include the cost of removal or reinstallation of the product, and does not apply if the product has been damaged by accident, abuse, misuse, or misapplication. This warranty is valid for BORLA street-legal products only and does not apply to any racing products or street products used for racing purposes. Any modifications to the product or its intended use voids the warranty. No person or representative is authorized to extend any warranties on behalf of BORLA, other than the warranty expressed herein. Some states do not allow limitations on how long an implied warranty lasts, so the above limitations may not apply to you. Some states do not allow the exclusion of limitations of incidental or consequential damages, so the above limitations or exclusions may not apply to you. This warranty gives you specific legal rights, and may have other rights which vary from state to state. This warranty replaces all previous warranties.

Part Number:400487


Vehicle Fitment

Year Make Model Inlet/Outlet Configuration Inlet Diameter (in) Outlet Diameter (in)
All All All Center/Dual 3.00" 2.50"


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