Invidia HS11STIG3T Q300 Catback Exhaust Ti Tips for 2011-14 Subaru WRX/STI

Vehicle Fitment

• 2011-2014 Subaru WRX / WRX STI (Turbo EJ25, AWD) - Sedan body only; hatchback not supported.

Features

• Premium Invidia Q300 cat-back exhaust system engineered for enhanced flow and torque
• Quad rolled titanium tips for aggressive styling and corrosion resistance
• Mandrel-bent SUS304 stainless steel piping for optimized exhaust flow
• Flat-bottom muffler design for aerodynamic flow and reduced back pressure
• Resonated tuning for rich exhaust tone with minimized drone
• Direct OEM-style hangers and flanges for bolt-on installation
• Improved throttle response and mid-range horsepower gains
• Premium TIG welding and precision CNC flanges for long-term durability

Specifications

• Part Number: HS11STIG3T
• Series: Invidia Q300
• Primary Material: SUS304 stainless steel
• Piping Diameter: 76 mm (3")
• Tip Diameter: 110 mm quad rolled titanium
• Fitment: 2011-2014 Subaru WRX / WRX STI sedan
• Body Type: 4-door sedan (not compatible with hatchbacks)
• Installation: Direct bolt-on using OEM hangers & hardware

Included Components

• 1x Invidia Q300 catback exhaust assembly (HS11STIG3T)
• 4x Titanium rolled exhaust tips
• 1x Set of gaskets
• 1x Bolt and hardware kit for direct installation

Product Description

The Invidia HS11STIG3T Q300 Catback Exhaust with Titanium Tips is a high-performance cat-back exhaust system designed specifically for 2011-2014 Subaru WRX and WRX STI sedans. Engineered with mandrel-bent SUS304 stainless steel piping and a flat-bottom muffler design, this exhaust improves exhaust gas flow, reducing back pressure to deliver enhanced throttle response and torque gains over the factory system. The resonated setup produces a rich, deep exhaust note that balances performance and everyday comfort.

Styled with quad rolled titanium tips, the Q300 system enhances the rear appearance while maintaining strong corrosion resistance. Installation is direct bolt-on using OEM-style hangers and flanges, making fitment straightforward for both enthusiasts and professional installers. This exhaust is tailored for 4-door WRX and STI sedans and is not compatible with hatchback models. The HS11STIG3T delivers refined power and signature Subaru boxer rumble, ideal for daily drivers and performance builds alike.