BORLA 400479 Notch Pro Muffler 2-1/4 14X7-7/8 4-1/4

( Brand: Borla ), ( Part Type: Muffler ), ( Manufacturer Part Number: 400479 ), ( Alt Mpn 1: Bor400479 ), ( Average Delivery Time: 3-4 Days ), ( Package Weight: 7.8000 ), ( Package Length: 20.40 ), ( Package Width: 10.10 ), ( Package Height: 5.00 ), ( Manufacturer Warranty: 30 Days )

Review BORLA Universal 2-1/4 14x7-7/8 4-1/4 Notch Pro xs Muffler fits XS

The Borla 400479 2-1/4 inch 14x7-7/8 4-1/4 notch Pro-XS muffler is a high-performance exhaust component designed to enhance the sound and functionality of your vehicle's exhaust system. This muffler, part of Borla's Pro-XS series, is specifically engineered for vehicles with a 14x7-7/8 4-1/4 notch exhaust configuration and requires a 2-1/4 inch inlet and outlet diameter.

The Borla Pro-XS muffler is constructed from premium T304 stainless steel, ensuring durability and resistance to corrosion. Its unique notch design provides a perfect fit for your specific vehicle make and model, while allowing for a smoother exhaust flow, resulting in improved engine performance and responsiveness.

This Borla muffler features a 4-1/4 inch diameter outlet, making it suitable for use with high-flow exhaust systems and catalytic converters. Its Pro-XS design delivers an aggressive, yet refined exhaust note, giving your vehicle a distinctive sound that is both powerful and sophisticated.

Borla's Pro-XS muffler is also engineered with a patented internal Borla core design, which reduces back pressure and increases exhaust flow, resulting in improved horsepower and torque. The muffler's internal construction also features a multi-core design, which further reduces exhaust noise while maintaining a pleasing exhaust tone.

Installing the Borla 400479 Pro-XS muffler is a straightforward process, thanks to its bolt-on design and included hardware. Its durable, high-temperature ceramic coating not only enhances the muffler's appearance, but also protects it from the extreme temperatures and harsh conditions that come with high-performance exhaust systems.

In summary, the Borla 40479 Pro-XS muffler is a high-quality, performance-oriented exhaust component designed for vehicles with a 14x7-7/8 4-1/4 notch exhaust configuration and requiring a 2-1/4 inch inlet and outlet diameter. Constructed from premium stainless steel, featuring a unique notch design for a perfect fit, and delivering a powerful and refined exhaust note, this Borla muffler is an excellent choice for those seeking to enhance their vehicle's performance and exhaust sound.

Pros and Cons of Buying Borla 400479 Notch Pro-XS Muffler

a. Enhanced Performance: Borla Notch Pro-XS mufflers are designed to provide improved exhaust flow, resulting in increased horsepower and torque.

b. High-Quality Material: This muffler is made of premium stainless steel, ensuring durability and resistance to corrosion.

c. Unique Design: The notch design of the muffler provides a unique look, setting it apart from other aftermarket mufflers.

d. Sound: The Borla Notch Pro-XS muffler offers an aggressive exhaust note, appealing to many performance enthusiasts.

e. Fitment: Borla is known for its precise fitment, ensuring a straightforward installation process.

a. Price: The Borla Notch Pro-XS muffler is more expensive than some aftermarket alternatives, which may deter some buyers.

b. Loudness: While some may appreciate the aggressive exhaust note, others may find it too loud for daily driving.

c. Weight: The Borla Notch Pro-XS muffler is heavier than stock mufflers due to its high-quality materials and design, which may impact fuel economy.

The Borla 400479 Notch Pro-XS muffler offers several advantages, including enhanced performance, high-quality materials, unique design, and a desirable exhaust note. However, it comes with some drawbacks, such as a higher price point, increased loudness, and additional weight. Ultimately, the decision to purchase this muffler depends on your personal preferences, budget, and desired level of performance.

If you are looking for a high-performance aftermarket muffler with a unique design and aggressive exhaust note, the Borla 400479 Notch Pro-XS muffler is an excellent choice. However, if you prioritize a quieter exhaust system, a lower price point, or minimal weight increase, you may want to consider other options. It is essential to evaluate your needs and budget before making a purchase.

part # 400479 prices

• $117.99-$149.77

specifications frazzlekits:

• for models: Xs
• brand: Borla
• part type: Muffler
• manufacturer part number: 400479
• alt mpn 1: Bor400479
• average delivery time: 3-4 Days
• package weight: 7.8000
• package length: 20.40
• package width: 10.10
• package height: 5.00
• manufacturer warranty: 30 Days

returns frazzlekits:

• paid by: Seller
• time: 30 Days
• policy: Returns Accepted

general frazzlekits:

• Car Truck Parts Accessories > Exhaust Emission Systems > Exhaust System Kits
• condition: New

offer frazzlekits:

• options: Ship-to-home
• quantity: 2
• availability: In Stock
• started: May 14, 2026
• sold: 0

seller frazzlekits:

• # reviews: 527977
• rating: 99.7%

shipping frazzlekits:

• type: Calculated
• carrier: FedEx
• transit: 2-5 Days
• class: Standard
• service: FedEx Ground / FedEx Home Delivery
• cost: $0.00

payments frazzlekits:

• wallet: Google-pay
• credit card: Mastercard
• other

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