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Borla S-Type Specialty Muffler - 2.75in Center In/Out, 6.75in Dia, 24in Body, 29in OAL, Un-Notched (401664)

$258.99 $289.99
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Borla S-Type Specialty Muffler - 2.75in Center In/Out, 6.75in Dia, 24in Body, 29in OAL, Un-Notched (401664)
$258.99 $289.99
$258.99 $289.99

The Borla S-Type Specialty Muffler (401664) is a universal, reversible performance muffler engineered for truck and SUV applications that require a long-body design for superior sound control. This muffler provides the signature S-Type exhaust note, offering a deep, aggressive tone while maintaining a high-flow internal architecture for improved performance.

Built for durability, this muffler is constructed from 100% welded T-304 austenitic stainless steel to prevent corrosion. The un-notched necks are specifically designed for a secure weld-in installation. Internally, Borla utilizes high-temperature continuous-filament fiber (CFF) acoustic material to manage sound levels and prevent packing blowout over time.

  • Part Type: Specialty Muffler
  • Inlet/Outlet: 2.75-inch Center In / Center Out
  • End Type: Un-Notched (Weld-in)
  • Case Dimensions: 6.75-inch Diameter x 24-inch Body Length
  • Overall Length (OAL): 29 inches
  • Material: T-304 Stainless Steel
  • Finish: Natural Mill (Brushed or Polished)
  • Design: Reversible for installation flexibility
  • MPN: 401664

The natural mill finish can be brushed or polished prior to installation. This unit is backed by Borla's Million-Mile warranty.

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