Borla 40364 Universal Pro-XS 2.5\" Inlet/2.5\"Outlet Center/Center Exit Muffler For Sale - New and Used

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Part Brand: Borla

Part Number: 40364

Vehicle Fitment

• Universal fitment for all 2.5″ exhaust systems
• Suitable for cars, SUVs, trucks; compatible with 2.5″ center-in/center-out piping
• Reversible orientation--install inlet/outlet in either direction
• Requires weld-in or 3″ band clamp installation (Borla 18004 clamp recommended)

Fitment Notes

• Sold individually--one muffler only
• Not vehicle-specific; verify fitment based on exhaust system dimensions
• Requires T‑304 stainless steel welding skills if not using clamps
• Oval body may require fabrication clearance in tight tunnel sections

Features

• Straight-through free-flow design enhances exhaust velocity
• Constructed from T‑304 stainless steel inside and out for maximum corrosion resistance
• 100 % welded construction--no internal sections or seams to fail
• Reversible design allows flexibility during exhaust fabrication or upgrade
• High‑temperature continuous‑filament fiber acoustic packing for refined tone control
• Natural mill finish--can be polished for a customized look
• Made in USA with Borla’s Million‑Mile warranty
• Compatible with both daily-driven and performance-oriented vehicles

Specifications

• Inlet/Outlet Diameter: 2.5″ (center‑in, center‑out)
• Body Dimensions: 14″ L × 9.5″ W × 4″ H
• Overall Length: 19″
• Material: T‑304 stainless steel (inside and out)
• Shape: Oval
• Reversible Design: Yes
• Sold individually: 1 unit per purchase
• Installation Method: Weld‑in or 3″ band clamp

Included Components

• 1x Borla ProXS™ universal muffler 40364
• 1x Instruction tag for orientation and installation notes

Product Description

The Borla 40364 ProXS™ universal muffler is a high-performance bolt-on solution for anyone upgrading or fabricating a 2.5″ exhaust system. With straight-through design and a reversible center-in/center-out layout, this muffler offers flexibility and flow for a wide array of vehicles--cars, trucks, SUVs--without being limited to a specific make or model.

Crafted from T‑304 stainless steel both inside and out and featuring 100 % welded construction, this muffler ensures longevity and resilience under extreme conditions. The internal acoustic packing delivers a refined tone that minimizes drone while allowing performance-enhancing sound. Measuring 14″ × 9.5″ × 4″ with a 19″ overall length, it\'s compact enough for tight installations yet substantial enough for serious exhaust upgrades. Ideal for street, track, or fabricated custom builds, it\'s backed by Borla\'s Million‑Mile warranty for lifetime assurance.

The 40364 is sold individually and can be installed via welding or using a 3″ band clamp (Borla 18004 recommended). Its reversible design and oval body shape offer installation flexibility, though mock-up is advised to ensure clearance. Perfect for builders, tuners, or anyone seeking improved sound, durability, and performance in their exhaust systems.

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