S-FLO 4″ Coupler: The S-FLO 4″ Coupler transitions from 4.5″ to 4″ to accommodate aftermarket turbo inlet pipes that are 4″ in diameter.
What’s Included:
- AWE Tuning Audi RS3 / TT RS 4.5in S-FLO 4in Turbo Inlet Coupler
Vehicle Fitment:
- 2017-2020 Audi RS3 Base
- 2022-2024 Audi RS3 Base
- 2018-2022 Audi TT RS Quattro Base