Borla 401338 Universal Resonator, 2.75-Inch Center Inlet and Outlet, 5-Inch Round Body

Compact size is perfect for applications with limited space. Reversible design for installation flexibility. Un-Notched necks are designed for weld in installation. If clamping, use 3" wide band clamps 18005 (clamps not included). 100% welded construction for strength. It features a straight through performance design and is constructed of T-304 stainless steel for high durability. It utilizes continuous -filament fiber (CFF) acoustic material for sound control. Natural mill finish can be brushed or polished prior to installation. As with all BORLA® mufflers and resonators, it is made the USA and is covered by the Million Mile Warranty. Resonator - 2.75" Center Inlet/ 2.75" Center Outlet 5" Round x 10" Long Body 15" Overall Length. Universal Part. Reversible Design. Un-Notched Necks.

• Un-Notched necks are designed for weld in installation. If clamping, use 3" wide band clamps 18005.
• Alternate muffler/ resonator with notched necks is 401342. Use 1" wide band clamps 18327.
• Compact size is perfect for applications with limited space
• Universal. Reversible design.

The Borla 401338 Universal Resonator is a compact exhaust sound-control component designed for custom automotive applications with limited installation space. It features a 2.75-inch center inlet, a 2.75-inch center outlet, and a reversible design that allows flexible positioning during installation. The straight-through performance design supports efficient exhaust flow while helping refine exhaust tone.

Constructed from durable T-304 stainless steel, the resonator uses continuous-filament fiber acoustic material for consistent sound control and long-term durability. Its natural mill finish can be brushed or polished before installation. The un-notched necks are intended for weld-in installation; if clamping is preferred, Borla recommends using 3-inch-wide band clamps, part number 18005. Clamps are not included. An alternate resonator with notched necks is Borla 401342, which uses 1-inch-wide band clamps, part number 18327.

This universal Borla resonator is suitable for custom exhaust systems and is not vehicle-specific. It is manufactured in the USA and backed by Borla's Million Mile Warranty. Professional installation or exhaust fabrication is recommended to ensure proper alignment, clearance, and secure attachment. This product is not CARB approved and may not be legal for use on emissions-controlled vehicles in certain applications; verify applicable local and state requirements before installation.

What's Included: One Borla 401338 universal resonator. Installation clamps, tubing, and other hardware are not included.

Features:

• Compact Construction: Fits custom exhaust applications where installation space is limited.
• Reversible Design: Allows flexible inlet and outlet positioning during installation.
• Straight-Through Flow: Supports efficient exhaust performance with a free-flowing internal design.
• T-304 Stainless Steel Construction: Provides high durability and corrosion resistance, with a natural mill finish suitable for brushing or polishing.

Air Freight Prohibited: false
Not Carb Approved: true
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Regular Stock: t
Units Per Sku: 1