Universal XR-1™ Multicore Stainless Steel Round Race Muffler (40741) by Borla®, 4" Inlet / 4" Outlet, 16" Case Length x 6.25" Diameter. 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.
- 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.298.99Brand: Borla Part Number: 40741 UPC: 808422407410
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.
- Vehicle FitmentThis part is universal
Year Make Model Fitment Notes ALL ALL ALL This part is universal
Product Reviews (0)
Product Reviews (0)
You will never pay more with CARiD! Not only will we match prices from any competitor's website or other reputable source, we will continue to honor that promise for up to one year after your purchase.
We'll match the price at time of purchase, or refund you the difference if done after the purchase. Either way, we are totally committed to providing you the best online shopping experience.
We're car and truck enthusiasts, just like you! And it's enthusiasts we hire in our Sales and Service Centers. Many of our staff are ASE certified and have spent years in the retail auto business.
We conduct our own in-house training, and we even bring vendors to us for hands-on product training demonstrations. You're getting true expertise when you phone or email us!
With hundreds of vendors, and tens of thousands of components for sale, we put tremendous effort into coordinating our data with our vendors' data in order to guarantee that you get the correct part.
Our huge database is regularly cross-checked to keep it current and optimized. At times, our thoroughness makes our data even more accurate than our suppliers! This rigorous process means that you can always order with confidence.