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