AWE Tuning Audi RS3 / TT RS 4.5in S-FLO 4in Turbo Inlet Coupler
AWE Tuning Audi RS3 / TT RS 4.5in S-FLO 4in Turbo Inlet Coupler
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Description 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. Installation Instructions This Part Fits Year Make Model Submodel 2017-2020,2022-2025 Audi RS3 Base 2018-2022 Audi TT RS Quattro Base.