JDY 4" Turbo Inlet Kit | Audi RS3, TTRS 2.5T EVO

Looking to maximize airflow to your EA855-powered Audi? The JDY 4" Turbo Inlet Kit was designed to eliminate one of the most common restrictions in the intake tract while supporting everything from stock turbo setups to today's popular hybrid turbo upgrades. Featuring a massive 4-inch inlet design, CFD-optimized internal geometry, and modular turbocharger compatibility, this kit helps improve airflow, reduce restriction, and support the increased demands of higher horsepower applications. Whether you're building a responsive street car or chasing bigger power numbers, the turbo inlet is one of the key supporting modifications that helps the entire intake system perform more efficiently. Constructed from high-strength A356-T6 cast aluminum and paired with a stainless steel heat shield, the JDY Turbo Inlet Kit delivers OEM-like fitment with the flexibility to support future turbocharger upgrades. Features Large 4" inlet diameter for increased airflow capacity CFD-optimized design to reduce turbulence and improve efficiency Supports stock and most popular hybrid turbocharger upgrades A356-T6 heat-treated cast aluminum construction Modular CNC-machined turbo flange system Includes 56.5mm, 63mm, and 66mm turbo adapters Compatible with left-hand drive (LHD) and right-hand drive (RHD) vehicles Includes stainless steel OEM-style heat shield Direct bolt-on installation No cutting or permanent modifications required What's Included JDY A356-T6 Cast Aluminum Turbo Inlet 56.5mm Turbo Adapter 63mm Turbo Adapter 66mm Turbo Adapter 4" to 4" Silicone Coupler 4" to 5" Silicone Coupler Stainless Steel Heat Shield Vacuum Fittings Installation Hardware Vehicle Fitment Audi RS3 8V.5 (2017-2020) - 2.5T DAZA Audi RS3 8Y (Except DXHA Applications) Audi TTRS 8S - 2.5T Audi RSQ3 F3 - 2.5T ORT Take The DAZA platform responds incredibly well to airflow improvements, and the turbo inlet is one of those modifications that tends to get overlooked because it isn't as flashy as an intake or tune. What we like about the JDY kit is the attention to detail. The casting quality is excellent, the modular flange system means you won't outgrow it when you move to a hybrid turbo, and the included heat shield keeps the installation clean. If you're already upgrading your intake—or planning on stepping into hybrid turbo territory later—this is one of those "buy once, cry once" parts that makes a lot of sense.