Borla ProXS 3-Inch Offset Inlet and Center Outlet Universal Muffler, Part 40359

ProXS Muffler 3" Offset Inlet/ 3" Center Outlet, 4" x 9.5" Oval, 14" Long Body, 19" Overall Length. Un-Notched necks are designed for weld in installation. If clamping, use 3" wide band clamp 18006 (clamps not included). Reversible design for installation flexibility. High-quality T-304 austenitic stainless steel for superior corrosion resistance. 100% welded construction for strength. Free Flow design for improved performance. High-temperature continuous-filament fiber (CFF) acoustic material for sound control. Natural mill finish can be brushed or polished prior to installation. Best of all, it's made in the USA and backed by BORLA(r)'s Million-Mile warranty. Just what you'd expect from the world's most experienced (and most winning) exhaust brand. ProXS Muffler 3" Offset Inlet/ 3" Center Outlet, 4" x 9.5" Oval, 14" Long Body, 19" Overall Length. Universal Part. Reversible Design. Million Mile Warranty

• Un-Notched necks are designed for weld in installation. If clamping, use 3" wide band clamps 18006.
• 3" Offset Inlet/ 3" Center Outlet, 4" x 9.5" Oval, 14" Long Body, 19" Overall Length
• Alternate muffler with notched necks is 400482. Use 1" wide band clamps 18330.
• Universal muffler. Reversible design.

The Borla ProXS Universal Muffler delivers durable construction, efficient exhaust flow, and controlled sound for custom automotive exhaust systems. Part 40359 features a 3-inch offset inlet and 3-inch center outlet in a reversible oval muffler design, providing installation flexibility for a wide range of weld-in applications. Its un-notched necks are intended for welding; if the muffler is installed with clamps, Borla recommends 3-inch-wide band clamp 18006, sold separately.

Constructed from high-quality T-304 austenitic stainless steel, the Borla ProXS muffler offers excellent corrosion resistance and long-term durability. Its 100% welded construction supports strength under demanding exhaust conditions, while the free-flow design helps promote efficient exhaust performance. High-temperature continuous-filament fiber acoustic material helps manage sound without restricting exhaust flow. The natural mill finish can be brushed or polished before installation to complement a custom exhaust system.

This universal Borla muffler is made in the USA and backed by Borla's Million-Mile Warranty. The reversible configuration allows the inlet and outlet orientation to be adapted during installation. For applications requiring notched necks, the alternate Borla muffler is Part 400482, which uses 1-inch-wide band clamp 18330. This product is a universal automotive exhaust component, so professional installation and application verification are recommended before purchase.

Product Specifications and Technical Data

• Brand: Borla
• Part Number: 40359
• Product Type: Universal ProXS muffler
• Inlet Configuration: 3-inch offset inlet
• Outlet Configuration: 3-inch center outlet
• Muffler Shape: Oval
• Construction Material: T-304 austenitic stainless steel
• Installation Type: Weld-in installation; reversible design

What's Included

• One Borla ProXS universal muffler, Part 40359

Features:

• Reversible Design: Allows flexible orientation during custom exhaust installation.
• T-304 Stainless Steel Construction: Provides strong corrosion resistance and lasting durability.
• Free-Flow Performance: Supports efficient exhaust flow for custom automotive exhaust systems.
• Welded Construction and Acoustic Control: 100% welded construction adds strength, while high-temperature continuous-filament fiber material helps manage exhaust sound.

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