Invidia 2015+ Subaru WRX / STI Gemini R400 Cat-Back Exhaust – Quad Stainless Steel Tips

Unlock aggressive sound and performance with the Invidia Gemini R400 Cat-Back Exhaust System for your Subaru WRX or STI. Built to impress on both the street and the track, this system delivers a deep, refined tone with a sporty growl, thanks to its high-flow design and performance-minded engineering.

Featuring large 76mm piping that splits into dual 60mm sections and finishes with four 101mm rolled stainless steel tips, the Gemini R400 offers an aggressive yet clean look to match its performance.

Key Features:

• Piping Diameter: 76mm main pipe, split to dual 60mm
• Exhaust Tip Diameter: Quad 101mm
• Tip Style: Single Layer Polished Stainless Steel
• High-quality SUS304 stainless steel construction
• Mandrel-bent piping for smooth exhaust flow and reduced back pressure
• Performance-tuned for a deep, aggressive exhaust note
• Direct bolt-on installation — no cutting or welding required

Vehicle Fitment:

• 2015–2020 Subaru WRX Base 2.0L Turbo
• 2015–2020 Subaru WRX Premium 2.0L Turbo
• 2015–2020 Subaru WRX Limited 2.0L Turbo
• 2015–2020 Subaru WRX STI Base 2.5L Turbo
• 2015 Subaru WRX STI Launch Edition 2.5L Turbo
• 2015–2020 Subaru WRX STI Limited 2.5L Turbo
• 2016 Subaru WRX STI Series.HyperBlue 2.5L Turbo

Part Number:

HS15STIGM4SS

If you're ready to enhance your WRX or STI’s tone, performance, and presence, the Invidia Gemini R400 Cat-Back Exhaust is a perfect upgrade. Enjoy that signature Subaru rumble with premium stainless steel styling and proven power gains.