Unitronic 3" Turbo Inlet Elbow for 2.5TFSI EVO

The factory turbo inlet on the 2.5TFSI EVO is one of the easiest gains you can leave on the table — or pick up. The OEM plastic inlet is restrictive by design, and as soon as you start pushing more power through a tune or upgraded turbo, it becomes a bottleneck. Unitronic's 3" Turbo Inlet Elbow fixes that with a direct bolt-on cast aluminum replacement that flows 12% more air right out of the box, with zero tuning required.

This is one of the first mods we recommend on any 2.5TFSI EVO build — whether you're running a stock turbo on a Stage 1 tune or building toward a hybrid setup. It's a clean, OEM-style installation that makes everything downstream work better.

Dyno-Proven Results

Back-to-back testing on a 2018 Audi TT RS on Unitronic's MAHA LPS3000 chassis dyno showed real, measurable gains with nothing else changed:

Why It Works

• Eliminates the OEM Restriction — The factory inlet limits airflow to the compressor. The Unitronic inlet removes that restriction with a larger, smoother bore.
• CFD-Optimized Geometry — Designed using 3D scanning, CAD modeling, and computational fluid dynamics simulation to maximize compressor inlet velocity and flow uniformity.
• Aircraft-Grade Cast Aluminum — Far more durable than the factory plastic inlet, built to handle the heat and pressure of a modified engine bay.
• Integrated PCV Design — Retains proper crankcase ventilation routing so OEM pressure characteristics and emissions functionality are fully maintained.
• Precision-Machined Direct Fit — Bolts straight in with no cutting, drilling, or modification. Clean, OEM-style installation.

Turbo Compatibility

• Factory BorgWarner turbocharger
• TTE625
• TTE700
• SRM GTX35
• Compatible with many other stock-frame hybrid turbochargers

Vehicle Fitment

• 2017–2019 Audi RS3 (8V.2)
• 2017–2019 Audi TT RS (8S)