Invidia [15-21 WRX] [15-21 WRX STI] Q300 Cat Back Exhaust - Quad Double Wall Stainless Steel Tips
Upgrade your 2015-2021 Subaru WRX or WRX STI Sedan with the Invidia Q300 Cat Back Exhaust. The Q300's flat-bottom muffler design uses continuous internal piping and Advantex packing for a free-flow exhaust with optimized back pressure, giving strong power and torque gains with a rich, deep sporty sound that stays refined for daily driving.
- Fits 2015-2021 Subaru WRX and WRX STI Sedan (VA chassis)
- 76mm mandrel-bent SUS304 polished stainless steel piping
- Quad 110mm double-wall polished stainless steel rolled tips
- Flat-bottom muffler with Advantex material for free flow and optimized back pressure
- CNC-machined flanges with robot-TIG welding
- Rich deep sporty sound without excessive volume
- Part HS15STIG3S
Products received may vary slightly from images due to manufacturing tolerances or supply chain variables.
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