Invidia 11+ STI/WRX Sedan Only 76mm Q300 Stainless Steel Tip Cat-back Exhaust

This Invidia exhaust is built for real gains you can feel in the seat. Smooth bends and smart muffler design improve flow and throttle response while keeping the note tight and controlled. Q300 focuses on a quiet cruise with a solid, mature note under throttle; ideal if you want performance without attention at idle. Routing is optimized to cut turbulence and keep velocity up through the whole system. This setup pairs well with the Wrx platform and responds nicely to basic bolt-ons and a clean tune. Quality materials and precision welding help resist heat and corrosion. The result is consistent fitment, solid hardware, and a system that performs without constant attention. Expect better response off the line, stronger pull through the midrange, and a tone that feels right for a quick street car. Bolt-on installation with standard tools in most cases.

About Invidia

Invidia builds performance exhausts with a focus on flow, durability, and sound. Their systems use precision mandrel bends, quality TIG welds, and carefully tuned mufflers to deliver real gains on the street and track. Backed by decades in the sport compact scene, Invidia parts are known for consistent fitment and a clean, purposeful tone.

Vehicle Fitment

Subaru Impreza WRX STI 2011
Subaru Impreza WRX STI 2012
Subaru Impreza WRX STI 2013
Subaru Impreza WRX STI 2014

Part #: HS11STIG3S

Note: Possible generic images used for reference only.