Invidia Gemini R400 Titanium Quad Tip Cat-Back Exhaust for 2015–2021 Subaru WRX/STI

The Invidia Gemini R400 Cat-Back Exhaust System is engineered for maximum flow and a race-inspired sound. Featuring minimal bends and a larger 3" piping diameter, it allows exhaust gases to exit with minimal restriction and turbulence — delivering measurable gains in horsepower, torque, and throttle response across the entire RPM band.

Features

• 3" piping diameter for unrestricted exhaust flow
• 304 stainless steel construction
• Titanium burnt quad tips
• Pronounced exhaust note throughout the entire RPM band
• Exhaust hangers welded to OEM locations for direct fitment
• New hardware and gaskets included — ready to install out of the box

What's in the Box

• Invidia Gemini R400 Cat-Back Exhaust System
• Titanium burnt quad tips
• New hardware and gaskets

Fitment

• 2015–2021 Subaru WRX
• 2015–2021 Subaru STI

Warranty

• Invidia Limited Warranty