Borla® 40741 - XR-1™ Multi Core Racing Round Muffler (4.5" Center Inlet / Outlet Muffler, 16" Length)

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Borla® - XR-1™ Stainless Steel Multicore Racing Mufflers
Borla® - XR-1™ Stainless Steel Multicore Racing MufflersBorla® - Muffler SchemeBorla®  Multicore TechnologyBorla® - CatalogBorla® - Sound InformationBorla® - Exhaust Systems Sound Level Introduction on Dodge Challenger R/TBorla Authorized Dealer
$298.99
MANUFACTURED - Ships within 1 to 2 weeks
Universal Fit
Fitment Notes:
  • Not Vehicle Specific
Notes:
  • To ensure precise fit, please check muffler shape, length and inlet diameter: the latter should match your exhaust pipe diameter
  • All Venues Requiring Highest Flow Muffler-Space Allowing
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Product Details

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Borla Exhaust Systems

Universal XR-1™ Multi Core Racing Round Muffler (40741) by Borla®. Muffler Sound: AGGRESSIVE. Muffler Series: XR-1™. Muffler Structure: Multi Core. Muffler Configuration: Center - Center. Inlet Diameter: 4". Outlet Diameter: 4". Muffler Body Shape: Round. Muffler Body Length: 16". The Borla XR-1 Multi-Core Muffler was developed on the race track to quiet the most severe engine noise without restricting power. They work so well that they're used by race vehicles that aren't even required to have mufflers! Now you can have this advanced technology for your car.

Notes:

  • To ensure precise fit, please check muffler shape, length and inlet diameter: the latter should match your exhaust pipe diameter
  • All Venues Requiring Highest Flow Muffler-Space Allowing
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Features:

  • The most possible exhaust flow in a muffler for maximum performance
  • Quiets the most severe engine noise, leaving a pronounced sound of power
  • Patented straight-through, multi-core muffler design reduces backpressure while absorbing sound waves
  • Made from the finest austenitic stainless steel for long-lasting durability
  • All welded construction
  • Proudly made in the USA

In racing, every horsepower counts, so no competitor will use something that will reduce engine power. Yet, winning drivers in all forms of racing use Borla XR-1 Multi-Core Racing Mufflers. It’s because these racers have found that Borla mufflers cost them no power and in many instances, actually increase horsepower. In fact, a Borla multi-core straight through muffler has actually been found to outflow a straight piece of pipe! Most of the recent Baja off-road endurance racing champions used Borla mufflers even though the rules don’t mandate them, because they either increase or don’t reduce power, and the noise reduction reduces driver fatigue and increases driver awareness.

Borla’s patented straight through, multi-core muffler design reduces restriction and increases exhaust gas velocity, making sure each cylinder is completely evacuated to make room for the incoming charge. This design absorbs the sound waves without disturbing the power waves, in contrast to the chambered mufflers used by most aftermarket companies. Chambered mufflers use partitions or baffles to subdue sound waves, which also creates backpressure and reduces power.

Borla uses austenitic stainless steel in the construction of the XR-1 muffler, which contains high levels of nickel and chromium, to resist corrosion. This material is harder than the lower grade stainless steel used by the OEM manufacturers, yet is very ductile. Nevertheless, the increased hardness requires special equipment to form and bend. The muffler contains stainless steel perforated tubes wrapped with several layers of stainless steel sound absorbing material and a layer of ceramic sound absorbing, high temperature material, all contained in a fully welded stainless steel shell.

Borla® is the leading manufacturer of stainless steel performance exhaust products. The company began three decades ago making exhaust systems for concours classic Rolls Royce and Ferrari models, and gradually evolved to become the premier manufacturer of performance exhaust products for street, off-road and racing. Borla pioneered many improvements in the design of performance exhaust systems, holds several patents for innovative exhaust system technology, and has won numerous “Best New Product” awards. Today the company operates a state of the art research and development center in Oxnard, California, and makes all of its products at a world-class manufacturing facility in Johnson City, Tennessee.

Brand:
Part Number:
40741
UPC:
808422407410

Warranty Information

Find out everything you need to know about the product warranty

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 for non-moving parts. BORLA® catalytic converters are warrantied for three years. BORLA® will warranty 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.

If you have any problems with a BORLA® product, involving either installation or performance, please call the company you bought it from immediately. BORLA® Distributors will take all necessary steps to ensure you are satisfied.

Because sound is subjective, we do not warranty for sound. Please do not return your BORLA® product if you do not like the sound level. There are several ways to adjust the sound level. You can obtain venturies, for example, from your retailer that you can place in your system to quiet your system.

If you must return part or all of your purchase to your retailer, call first. If for any reason your retailer must return part of your purchase to us, he will need information, including a customer service number, to speed shipment and processing, so that we can get your purchase back to you as quickly as possible.

When returning your purchase, include a copy of this warranty with the product, along with your name, address, telephone number with area code, a description of the problem and proof of the date of retail purchase (invoice copy). Return the product, freight charges prepaid. Pack carefully; we cannot accept product damaged in shipment.

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.

This warranty excludes XR-1® Raceline products and Marine products.

Products sold outside the USA carry a 3-year limited warranty.

Magnuson-Moss Warranty Act:
Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)) Learn More

Vehicle Fitment

This part is universal
Year Make Model Fitment Notes:
ALL       ALL        ALL         This part is universal
    Borla® - XR-1™ Stainless Steel Multicore Racing MufflersBorla® 40741 - XR-1™ Multi Core Racing Round...    $298.99
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