Invidia 15+ Subaru WRX / STI N1 Titanium Tip Cat-Back Exhaust

Aggressive Sound. Proven Power. Track-Ready Design.

The Invidia N1 Cat-Back Exhaust for the 2015–2021 Subaru WRX and STI Sedan offers a true race-inspired system designed for the performance enthusiast. This dual-outlet system features single-layer, rolled titanium tips and mandrel-bent stainless steel piping for maximum flow and a signature boxer rumble.

With 76mm piping that splits into dual 60mm pipes and 101mm titanium tips, this cat-back not only improves exhaust velocity and reduces back pressure, but also adds a bold, aggressive look to your WRX or STI. Made from premium SUS304 stainless steel, it’s built to withstand the elements and the track.

Key Features

• Piping Diameter: 76mm main pipe, splits to dual 60mm
• Tip Diameter: Dual 101mm
• Tip Style: Single-layer rolled titanium
• Mandrel-bent SUS304 stainless steel for optimal flow
• Reduces back pressure, enhances top-end performance
• Race-inspired tone with a deep, aggressive exhaust note
• CNC-machined flanges ensure a precision fit
• Polished finish for a clean, high-end appearance
• Direct bolt-on design

Vehicle Fitment

• 2015–2021 Subaru WRX 2.0L Turbo (Sedan)
• 2015–2021 Subaru WRX STI 2.5L Turbo (Sedan)

Why Choose the Invidia N1 Cat-Back for WRX/STI?

Perfect for enthusiasts seeking a noticeable performance bump and aggressive tone without sacrificing daily drivability, the Invidia N1 Cat-Back is a proven option for WRX and STI owners. Whether on the street or track, this system offers sound, power, and quality you can rely on.

Part Number: HS15STIGTT