Premium Cat-Back Exhaust System for Subaru WRX & STI (2011-2021) Elevate your Subaru’s performance and sound with the Cobb Cat-Back Exhaust System. Engineered for the WRX and STI (2011-2021), this premium exhaust delivers aggressive tone, improved flow, and head-turning aesthetics with polished quad tips. Cobb’s proven design maximizes exhaust velocity while maintaining excellent drivability and minimal cabin drone. LIMITED TIME OFFER: Receive a FREE premium carbon fiber engine cover with your purchase—choose the Cobb Redline cover for 2015-2021 WRX or the APR Performance alternator cover for 2008-2021 STI. Add style under the hood while protecting critical components. Cobb Cat-Back Exhaust System The Cobb Cat-Back Exhaust is a complete axle-back and mid-pipe system designed to replace everything from the downpipe connection to the rear bumper. Featuring mandrel-bent stainless steel construction, dual mufflers, and stunning polished quad tips, this exhaust transforms both performance and appearance. Mandrel-Bent Construction: Consistent diameter throughout ensures maximum flow and minimal turbulence 304 Stainless Steel: Premium corrosion-resistant material built to withstand Australian conditions Dual Muffler Design: Aggressive sound without excessive drone during highway cruising Polished Quad Tips: Eye-catching 3.5″ polished stainless tips for premium appearance Direct Bolt-On: No cutting or welding required, uses factory mounting points Complete Hardware Kit: All gaskets, clamps, and hardware included for installation FREE Carbon Fiber Engine Cover Included For 2015-2021 WRX: Cobb 442605 Redline Carbon Fiber Engine Cover Genuine carbon fiber construction with clear coat finish Replaces factory plastic engine cover for premium appearance Cobb branding and Redline graphics Direct replacement—installs in minutes Heat-resistant design protects engine bay components Adds visual impact when you pop the hood For 2008-2021 STI: APR Performance CBE-WRXALT08 Carbon Fiber Alternator Cover Lightweight carbon fiber construction Covers and protects the alternator and surrounding area APR Performance branding with signature weave pattern Reduces engine bay heat and adds motorsport aesthetics Direct bolt-on installation with included hardware Professional-grade finish complements any engine build Performance Benefits Increased Power: Reduced backpressure unlocks horsepower and torque gains Improved Throttle Response: Better exhaust flow enhances engine breathing Aggressive Sound: Deep, sporty exhaust note that announces your presence Weight Reduction: Lighter than factory exhaust components Enhanced Aesthetics: Quad polished tips transform the rear end appearance Proven Reliability: Cobb’s track-tested design ensures long-term durability Fitment & Specifications Vehicle Application: Subaru WRX (2011-2021), Subaru STI (2011-2021) System Type: Cat-back (mid-pipe and axle-back) Material: 304 Stainless Steel Construction: Mandrel-bent tubing, TIG-welded Tip Finish: Polished stainless steel quad tips (3.5″ diameter) Installation: Bolt-on, professional installation recommended Tuning: Not required but recommended for optimal performance What’s Included Cobb Cat-Back Exhaust System (mid-pipe, mufflers, and quad tips) All necessary gaskets, clamps, and mounting hardware FREE Cobb 442605 Carbon Fiber Engine Cover (2015-2021 WRX only) FREE APR Performance CBE-WRXALT08 Carbon Fiber Alternator Cover (2008-2021 STI only) Installation instructions Why Choose COORE? At COORE, we’re passionate about delivering premium performance parts with exceptional value. This Cobb Cat-Back Exhaust package represents outstanding quality and sound, and we’ve sweetened the deal with a FREE carbon fiber engine cover to complete your build. We stock Cobb products locally in Australia for fast shipping, and our team has extensive experience with Subaru performance applications. Important Notes: Professional installation recommended. This exhaust may increase sound levels beyond legal limits in some jurisdictions—check your local regulations. The free engine cover will be automatically included based on your vehicle model (WRX receives Cobb cover, STI receives APR cover). Lead times may vary—contact us for current availability. Upgrade your Subaru’s exhaust and engine bay aesthetics in one package. The Cobb Cat-Back delivers the performance and sound you crave, while the free carbon fiber cover adds the finishing touch under the hood.
