Borla 5.5" x 8.5" x 23" Oval Un-Notched XR-1 Raceline Multi-Core Muffler, 4" Center/Center Universal Fit, 2014-2023 Silverado 1500

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Our Price: $341.99
Frequently bought together:



  • Reversible Design for Installation Flexibility
  • Designed for Full Bodied Trucks and Cars
  • Made From T-304 Austenitic Stainless Steel
  • 100% Welded Construction for Strength
  • Patented Multi-Core Design for Maximum Power
  • High-Temp 304 Stainless Steel Wool for Sound Control
  • Superior Balance of Sound and Power
  • Made in the USA
  • Million Mile Warranty


  • In/Out Diameter: 4"/4"
  • Overall Length: 28"
  • Configuration: Center/Center
  • Case Size/Shape: 5.5"H x 8.5"W x 23"L Oval
  • Connection: Un-Notched (connects via welds)


Note: Professional installation is highly recommended. Borla and/or Phastek are not responsible for damage to your vehicle.

Note: Although this part was designed for full-bodies vehicles, it may be used on other applications.

Warranty Information (opens in new tab): Click HERE

Part Number: 400069

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Warranty Information

BORLA® stands behind every system with a Million-Mile Warranty. Just what you'd expect from the world's most experienced (and most winning) exhaust brand.
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