Borla CrateMuffler Resonator 2.25in Center/Center 3.5in Round x 10in - 400937

The Borla CrateMuffler Resonator (MPN 400937) is a compact, reversible bottle-style resonator engineered to reduce sound pressure levels (SPL) by approximately 2-3 dB(A). Designed for applications with limited clearance, this straight-through resonator attenuates overall exhaust volume without obstructing flow or degrading engine performance. It is an ideal addition for those looking to transition a Borla S-Type CrateMuffler to a Touring sound level, or as a universal resonator for any 2.25-inch system.

Built from high-quality T-304 austenitic stainless steel, this unit features 100% welded construction for long-term durability and corrosion resistance. The internal high-temperature continuous-filament fiber (CFF) acoustic material provides consistent sound control even under extreme heat. The un-notched necks are designed for weld-in installation, but can be secured with 3-inch wide band clamps (part #18003). This unit features a natural mill finish with no logo embossment for a clean, low-profile look.

• MPN: 400937
• Configuration: 2.25-inch Center Inlet / 2.25-inch Center Outlet
• Dimensions: 3.5-inch Round Body, 10-inch Body Length, 15-inch Overall Length
• Material: T-304 Stainless Steel
• Design: Straight-through, reversible, and un-notched
• Sound Reduction: Approximately 2-3 dB(A)
• Origin: Made in the USA
• Warranty: Borla Million-Mile Warranty