X-Force

X-Force: Performance Exhaust with Patented Varex Technology

X-Force (XForce USA) is a performance exhaust specialist headquartered in Columbus, Ohio, built around one core idea: drivers should never have to choose between a quiet daily commute and an aggressive performance exhaust note. That philosophy gave rise to the brand's signature Varex™ valved exhaust technology — a patented system that has put X-Force on the map among truck owners and performance car enthusiasts alike.

What Makes X-Force Different?

At the heart of the X-Force lineup is the Varex™ muffler. Unlike a conventional aftermarket muffler that locks you into one sound level, the Varex uses patented technology to merge the characteristics of a stock muffler and a full performance muffler into a single compact unit. A sophisticated butterfly valve mechanism redirects exhaust gas flow between two internal paths: an open, free-flowing route for maximum power and that signature "sports car note," and a chambered, baffled route that tones things down to near-stock levels for comfortable highway cruising. The valve angle is also infinitely adjustable, so the driver can dial in any level of aggression between those two extremes.

Control is handled via a supplied remote with two key fobs, or — on systems equipped with the X-Force SmartBox vehicle control module — via a Bluetooth-connected smartphone app. The SmartBox integration brings exhaust sound management into the modern era, letting enthusiasts switch sound profiles from the driver's seat without reaching for a separate remote.

X-Force Exhaust System Kits

X-Force's complete exhaust system kits are the brand's flagship offering. Built from 304-grade stainless steel with mandrel-bent pipework, these cat-back systems are engineered for fitment precision, using factory mounting locations so installation can be completed in a home garage with basic hand tools. Every kit ships with the necessary hardware, clamps, and instructions. Vehicle coverage includes popular platforms such as the Ford F-150, Subaru BRZ, Toyota GR86, Nissan 370Z, and more, with fitment-specific designs that preserve OE quality while delivering a meaningful performance and sound upgrade.

Varex Mufflers & Universal Options

For builders who want Varex technology without a full cat-back system, X-Force offers standalone Varex valved mufflers in a range of inlet sizes — from 2.5-inch up to 4-inch — and body styles including Cannon and Oval configurations. These universal mufflers are ideal for custom exhaust fabricators or enthusiasts looking to retrofit variable sound control into an existing setup.

Quality, Warranty, and Fitment Confidence

X-Force backs its products with a manufacturer's warranty covering the full range — from universal mufflers and VAREX units to complete exhaust systems, headers, catalytic converters, and the SmartBox. The brand's stainless steel construction and OE-style fitment philosophy mean that every X-Force product is designed to look, fit, and last like it belongs on the vehicle — while sounding nothing like factory equipment.