{"product_id":"subaru-wrx-sti-sedan-cat-back-exhaust-system","title":"XForce 3\" Cat Back Exhaust Quad Tip 2011-2021 WRX Sedan \/ STI Sedan","description":"\u003ch3\u003eXForce 3\" Cat Back Exhaust Quad Tip 2011-2021 WRX Sedan \/ STI Sedan | 3\" Mandrel-Bent Stainless Steel | Performance Exhaust System\u003c\/h3\u003e\n\n\u003ch4\u003eOverview\u003c\/h4\u003e\n\u003cp\u003eThe XForce 3\" Cat-Back Exhaust System is a high-performance upgrade designed specifically for the 2011-2021 Subaru WRX Sedan and WRX STI Sedan. This exhaust system replaces the factory setup with a mandrel-bent 3\" stainless steel piping that optimizes exhaust flow, delivering improved throttle response, increased horsepower, and enhanced torque across the RPM range. Featuring dual side outlets with quad 3.5\" double-walled tips, it not only boosts performance but also adds an aggressive, refined aesthetic to your Subaru’s rear end.\u003c\/p\u003e\n\u003cp\u003eCrafted from durable 304 stainless steel, the XForce exhaust system emphasizes quality and longevity. The design incorporates a hot dog style resonator centrally located to reduce rasp and drone, while the straight-through oval rear mufflers allow for unrestricted exhaust flow. This balance of sound control and performance tuning reflects XForce’s engineering philosophy—delivering a deep, powerful exhaust note without sacrificing daily drivability or reliability.\u003c\/p\u003e\n\u003cp\u003eFor Subaru enthusiasts, this cat-back system offers a meaningful upgrade that complements the WRX and STI’s turbocharged powertrain. The increased pipe diameter and efficient muffler design help reduce backpressure, unlocking the engine’s potential while maintaining a strong, sporty exhaust tone. Installation is straightforward with direct bolt-on fitment, making it an accessible performance enhancement for owners looking to elevate their driving experience.\u003c\/p\u003e\n\n\u003ch4\u003eFeatures \u0026amp; Specifications\u003c\/h4\u003e\n\u003cp\u003eThis XForce 3\" Cat Back Exhaust System is engineered for 2011-2021 Subaru WRX and WRX STI Sedans and features mandrel-bent 304 stainless steel construction with a 3\" main pipe diameter. Designed for maximum airflow and durability, it delivers improved power and throttle response for Subaru enthusiasts seeking a balanced performance exhaust upgrade.\u003c\/p\u003e\n\u003cul style=\"list-style:none;padding:0;margin:0;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e XForce\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProduct:\u003c\/strong\u003e 3\" Cat Back Exhaust Quad Tip 2011-2021 WRX Sedan \/ STI Sedan\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e ES-SW26-CBS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e 2011-2021 Subaru WRX Sedan \/ WRX STI Sedan\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Polished Quad 3.5\" Double-Walled Tips\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e Mandrel-Bent Pipework, Welded Assembly\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Not Specified\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePipe Diameter:\u003c\/strong\u003e 3\" main pipe, splitting to twin 2.5\" piping\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eResonator Type:\u003c\/strong\u003e Center Hot-Dog Style Resonator\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMuffler Type:\u003c\/strong\u003e Oval Straight-Through Rear Mufflers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eKey Benefits\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePerformance:\u003c\/strong\u003e Increased horsepower and torque gains through optimized exhaust flow and reduced backpressure.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSound Quality:\u003c\/strong\u003e Deep, aggressive exhaust note with reduced rasp thanks to the center hot dog resonator and straight-through mufflers.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurability:\u003c\/strong\u003e High-grade 304 stainless steel construction resists corrosion and withstands heat for long-lasting reliability.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Direct bolt-on design ensures a precise fit for 2011-2021 WRX and STI Sedans with no modifications required.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAesthetics:\u003c\/strong\u003e Quad 3.5\" double-walled polished tips provide a bold, OEM+ appearance that enhances the rear profile.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThrottle Response:\u003c\/strong\u003e Larger diameter piping improves exhaust scavenging, resulting in quicker turbo spool and throttle response.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eWhat's Included\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1× XForce 3\" Cat Back Exhaust System for 2011-2021 WRX \/ STI Sedan\u003c\/li\u003e\n  \u003cli\u003eQuad 3.5\" Double-Walled Exhaust Tips\u003c\/li\u003e\n  \u003cli\u003eMounting hardware for direct bolt-on installation\u003c\/li\u003e\n  \u003cli\u003eInstallation instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eInstallation \u0026amp; Compatibility\u003c\/h4\u003e\n\u003cp\u003eInstallation of the XForce 3\" Cat-Back Exhaust is straightforward with its direct bolt-on design, making it accessible for enthusiasts with basic mechanical skills and common hand tools. No cutting or welding is required, and the system integrates seamlessly with the factory exhaust components. While professional installation is recommended for optimal fitment and to ensure proper torque on fasteners, experienced DIYers can complete the swap in a reasonable timeframe. No tuning is required to enjoy the performance and sound benefits, but owners seeking maximum gains may consider ECU tuning to complement the improved exhaust flow.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProfessional Installation:\u003c\/strong\u003e Recommended\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModifications Required:\u003c\/strong\u003e None\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVerify Compatibility:\u003c\/strong\u003e Confirm fitment for your specific 2011-2021 WRX or WRX STI Sedan model\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eShop with confidence at Subimods—your Subaru parts specialists.\u003c\/p\u003e","brand":"XForce","offers":[{"title":"Default Title","offer_id":46928763584687,"sku":"ES-SW26-CBS","price":891.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0587\/3598\/4815\/files\/xforce-3-cat-back-exhaust-quad-tip-2011-2021-wrx-sedan-sti-sedan-es-sw26-cbs-3061440.jpg?v=1779328687","url":"https:\/\/subimods.com\/products\/subaru-wrx-sti-sedan-cat-back-exhaust-system","provider":"Subimods.com","version":"1.0","type":"link"}