Description3" 304 Stainless Steel Varex valved Cat Back Exhaust System with SmartboxFeaturesUnleash the full potential of your Audi 8Y or 8V S3 Sedan with the XFORCE VAREX SmartBox-equipped cat-back exhaust system. This system doesn’t just upgrade your exhaust—it redefines how you experience sound and control behind the wheel.Constructed from brushed 304 stainless steel, the system features 3” mandrel-bent piping, a hot dog resonator, and a redesigned VAREX valved rear muffler, giving you a bold, aggressive tone when open and a refined, near-stock sound when closed. It’s daily-driveable with the flexibility to turn heads when you want to.Paired with our VAREX SmartBox, you gain the most advanced exhaust control available. Choose from:Matrix Mode: Automatically adjust valve position based on speed, RPM, or throttle input.Manual Mode: Fine-tune valve position in real time via the XFORCE app or remote.Geo Mode: Program valve behavior by location—quiet in your neighborhood, loud on your favorite backroad.Factory Mode (with optional cable): Seamlessly link exhaust behavior to your Audi’s built-in drive mode settings.Finished with bold quad 4” tips (available in brushed, black, or burnt blue), this system not only transforms your S3’s sound but also delivers a premium visual upgrade.System Features:3” mandrel-bent 304 stainless steel constructionDrone canister tube for reduced cabin droneRedesigned VAREX valved muffler for maximum sound rangeQuad 4” double-wall tipsBolt-on design with all necessary hardware includedIncludes VAREX SmartBox for full app controlDrive mode integration harness included
SKU ESAS38YSVKSB
Brand XForce
Type Performance Exhaust System

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