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Budget-friendly Borla Xr-1 Raceline - Multi-core | Part # 400371 Starter Kit [biMSH4Jm]

$59.99 $191.99 -69%

Borla XR-1 Raceline - Multi-Core Introducing the Borla XR-1 Raceline Multi-Core muffler, a powerful and versatile exhaust system designed for rotary engine equipped vehicles. This exceptional muffler stands out with its Multi-Core design, offering ma

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Budget-friendly Borla Xr-1 Raceline - Multi-core | Part # 400371 Starter Kit [biMSH4Jm]

Borla XR-1 Raceline - Multi-Core

Introducing the Borla XR-1 Raceline Multi-Core muffler, a powerful and versatile exhaust system designed for rotary engine equipped vehicles. This exceptional muffler stands out with its Multi-Core design, offering maximum power and performance. Crafted with precision, the XR-1 Raceline is built to enhance the driving experience and deliver an unparalleled sound quality.

Key Features and Specifications

The Borla XR-1 Raceline features a robust 3" muffler tubing size, ensuring optimal flow and performance. This universal part fits 3" center inlet and center outlet, with a compact 4.25" x 7.88" oval body and a 16" long body for a 21" overall length. The reversible design provides installation flexibility, making it suitable for various applications. Made from T-304 stainless steel, this muffler is corrosion-resistant and built to last. It boasts a 100% welded construction for strength and durability, along with high-temperature continuous-filament fiber (CRF) acoustic material for sound control.

Applications and Benefits

Ideal for high horsepower applications, the Borla XR-1 Raceline is a perfect fit for vehicles with limited space. Whether you're driving a rotary engine equipped vehicle or seeking to upgrade another application, this muffler delivers exceptional performance. With its patented Multi-Core design, it maximizes power output while maintaining a smooth and enjoyable driving experience. The absence of logo embossment adds to its sleek appearance. Made in the USA, this muffler is a testament to Borla's commitment to quality and excellence. Upgrade your vehicle today with the Borla XR-1 Raceline Multi-Core muffler and experience the difference that only Borla can deliver.

What Our Customers Say

January 23, 2026

Absolutely no complaints!

The performance is superb. Very powerful and efficient.

- Kevin T..

January 23, 2026

Absolutely no complaints!

This has made a noticeable difference in my daily life.

- Lily Henderson.

January 23, 2026

Absolutely no complaints!

I'm delighted with how this turned out.

- Alexis F..

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