Borla ProXS

ProXS 2.25in Offset/Center 4x9.5in Oval 14in Long Muffler

$148.99

SKU: 40664

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In Stock
Ships by Aug 4
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30 Days Return

Description

The Borla ProXS muffler (part #40664) is a universal exhaust component engineered for custom applications, offering a balance of performance and sound. It features a 2.25-inch offset inlet and a 2.25-inch center outlet, designed to integrate into various exhaust systems. The muffler's body is oval-shaped, measuring 4 inches by 9.5 inches, with a 14-inch long body and a 19-inch overall length, providing a compact yet effective design for diverse vehicle types. The 100% welded construction enhances its strength and durability. Its straight-through, reversible design offers significant flexibility during installation, allowing it to be mounted in either direction to better suit custom exhaust routing. The ProXS series is recognized for its sound profile, delivering a smooth, low tone during cruising and a more aggressive sound when under acceleration, without causing excessive drone. While this is a universal muffler, it is recommended for car, SUV, and truck applications. Its design aims to help the engine breathe more freely, potentially leading to slight performance enhancements and accentuating the natural engine tone.

Fitment

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Specifications

BrandBorla ProXS
Part Number40664
CategoryExhaust

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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