AWE Tuning S-FLO Turbo Inlet Coupler 4.5in to 4in for Audi RS3 & TT RS

Optimise airflow to your turbo with the AWE Tuning S-FLO Turbo Inlet Coupler. Designed to transition from a 4.5in inlet down to 4in, this coupler helps create a clean, secure connection where your intake and turbo inlet sizes differ. Built from quality materials for long-term durability in demanding engine bay conditions, it’s a smart supporting upgrade when fitting compatible intake or turbo inlet components on your RS3 or TT RS.

Key Features

• 4.5in to 4in reducer coupler for proper size transition
• Durable construction for high-heat engine bay environments
• Supports improved airflow to the turbo inlet

Vehicle Fitment

• 2017-2020, 2022-2025 Audi RS3 (Base)
• 2018-2022 Audi TT RS Quattro (Base)

Fitment disclaimer: Confirm your vehicle and intake/turbo inlet sizing before purchase, as fitment can vary by setup.

Benefits

• Helps reduce restrictions for better turbo breathing
• Improves connection integrity compared with mismatched sizing
• Ideal for intake upgrades and performance-oriented builds

Why Buy From Us

• Authentic AWE Tuning performance parts
• Fast shipping across NZ & AU
• Support to help you choose the right components