Borla XR1


Borla XR1 Performance Muffler 40943
Borla Muffler; XR-1 (R) Series; 7.88 Inch Width X 4-1/2 Inch Height T304 Stainless Steel Case; Single 3 Inch Inner Diameter Center Inlet; Single 3 Inch Outer Diameter Offset Outlet; 12 Inch Body/17-1/2 Inch Overall Length
Category: Brand


Borla XR1 muffler is made from high quality T304 stainless steel. Patented, race-winning XR-1® Raceline technology. Oval – BORLA XR1 is our number 1 selling racing muffler. Satisfies the needs of most racing applications because it is the lightest, most compact, and highest flowing racing muffler in its class and at a competitive price. The choice of winners from top Mustang drag racers to Baja Off-Road trophy trucks. We suggest you have FMS Performance build a custom exhaust system using the Borla XR1 muffler today.

PROP 65 WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For more information, visit

Borla XR1

Shape: Oval
Inlet Position: Center
Inlet Diameter (IN): 3 Inch
Outlet Position: Dual
Outlet Diameter (IN): 3 Inch
Overall Length (IN): 17-1/2 Inch
Color/ Finish: Bare
Case Diameter (IN): 7.88 Inch X 4-1/2 Inch
Case Length (IN): 12 Inch
Material: Stainless Steel
Includes Tip: No
Tip Length (IN): No Tip
Tip Diameter (IN): No Tip
Tip Finish: No Tip
Tip Material: No Tip
Wall Type: Single Wall
Internal Construction: Straight Through Single Core
  • Each System Is Built From Aircraft Grade High Quality T304 Stainless Steel
  • All BORLA® Mufflers Are Manufactured Using Ultra Durable, Continuous Strand Sound Absorbing Composite Filament
  • Unique, Proprietary Frequency Cancelling Technology Makes Sound Waves Travel Between Multiple Core Walls While Also Increasing Exhaust Gas Velocity
  • Flared Collectors On Both Ends Increase The Internal Diameter Of The Muffler Allowing For Optimal Flow
  • Limited Million Mile Warranty

Visit a FMS Performance Center today and pick up the all new Borla XR1 muffler

We offer FREE shipping on this product.  For professional installation near San Bernardino, Redlands, Riverside give us a call at 909-888-5020 Near Palm Springs, Cathedral City, Rancho Mirage, Palm Desert, Indio call 760-321-2896 All other areas call 1-800-833-0945 or click a link below.