Invidia Gemini R400 Full Titanium Catback

2015–2021 Subaru WRX / STI 2.0L & 2.5L Turbo

Part #: HS15STI5TG4ST

Overview

The Invidia Gemini R400 Full Titanium Catback is a high-performance exhaust system designed specifically for the 2015-2021 Subaru WRX and STI models. Crafted from premium titanium, this exhaust offers a perfect blend of lightweight construction, aggressive sound, and enhanced performance. Whether you're a spirited street driver or a track enthusiast, this full titanium setup elevates your vehicle's exhaust note while reducing weight and improving airflow.

Engineered for enthusiasts who demand the best, the Gemini R400 provides a sporty tone that complements the turbocharged Subaru's character. Its full titanium construction not only reduces weight significantly compared to stock stainless steel exhausts but also ensures durability and corrosion resistance. This exhaust system is an ideal upgrade for those seeking improved throttle response, increased tunability, and a more aggressive sound profile.

Key Features

The Invidia Gemini R400 Titanium Catback features advanced design elements and high-quality materials to maximize your Subaru's performance and aesthetic appeal. Key features include:

• Full titanium construction for exceptional strength-to-weight ratio, making it significantly lighter than stock stainless steel exhausts.
• 80mm piping diameter that splits to 60mm at the exhaust tips, optimizing exhaust flow for increased power and responsiveness.
• 101mm exhaust tips with a sporty appearance and enhanced sound characteristics, providing a deep, aggressive tone that turns heads.
• Mandrel-bent tubing ensures smooth airflow, reducing turbulence and backpressure for improved engine efficiency.
• Precision TIG welding and high-quality craftsmanship guarantee durability and a perfect fitment.
• Enhanced tunability with a sporty tone, ideal for enthusiasts looking to customize their vehicle's sound and performance.

Filter Options

The Gemini R400 is a complete catback exhaust system, designed as a direct bolt-on upgrade. It does not include filters or media options, as it focuses solely on exhaust flow and sound enhancement. Its titanium construction ensures minimal maintenance and long-lasting performance, making it suitable for daily driving and spirited runs alike.

Construction & Design

Constructed entirely from high-grade titanium, the Invidia Gemini R400 features a one-piece mandrel-bent design that promotes optimal airflow and durability. The TIG-welded joints provide a seamless finish, ensuring strength and longevity under demanding driving conditions. The lightweight titanium not only reduces overall vehicle weight but also helps dissipate heat more effectively, contributing to improved exhaust gas flow and engine efficiency. The dual 101mm exhaust tips add a refined aesthetic touch while delivering an unmistakable sporty sound.

Installation & Fitment

The Invidia Gemini R400 Catback is a bolt-on system that requires no cutting or welding. It mounts directly to the factory exhaust mounting points, ensuring a straightforward installation process. The system is designed to fit 2015-2021 Subaru WRX and STI models with OEM turbocharged engines. Basic hand tools are sufficient for installation, and no additional tuning is necessary to enjoy the benefits of this upgrade.

• Direct bolt-on installation with factory mounting points
• No cutting, drilling, or tuning required
• Compatible with 2015-2021 Subaru WRX/STI models

What's Included

• Full titanium catback exhaust system with front pipe, mid-pipe, and dual tips
• All necessary clamps and hardware for installation
• Detailed installation instructions

Ideal For

• Subaru WRX and STI owners seeking a lightweight, high-performance exhaust upgrade
• Enthusiasts wanting a sportier exhaust tone with improved airflow
• Drivers looking to reduce vehicle weight and enhance overall driving dynamics