Eventuri Audi 8Y RS3 LHD Carbon Turbo Inlet - U.S. Market

The Eventuri Audi 8Y RS3 LHD Carbon Turbo Inlet for the U.S. market is engineered to reduce intake restriction between the air intake system and turbocharger on the 2.5-liter turbocharged five-cylinder engine. Developed using Eventuri's high-temperature pre-preg carbon fiber construction, the inlet increases internal volume, provides a progressively curved airflow path, and incorporates thermal isolation between the carbon elbow and turbocharger. This version includes the additional breather components required for North American left-hand-drive Audi 8Y RS3 models.

The factory turbo inlet measures approximately 72mm at the intake connection and narrows to 56.4mm at the turbocharger outlet. Eventuri increases these dimensions to 103mm and 74mm, respectively, creating a substantially larger internal cross-sectional area. The carbon elbow maintains a continuous curvature between the intake connection and selected turbo flange, reducing abrupt transitions that can increase airflow resistance. The design is intended to accommodate the airflow requirements of both factory and compatible upgraded turbochargers.

The inlet elbow is manufactured from high-temperature pre-preg carbon fiber with a nominal 2mm wall thickness and a smooth internal surface. Unlike the factory cast-metal inlet, the carbon construction has lower through-thickness thermal conductivity, helping limit conductive heat transfer into the intake tract. A heat-reflective layer is also applied where the elbow passes over the exhaust manifold to reduce exposure to radiant heat.

Additional thermal isolation is provided by a CNC-machined aluminum turbo flange and an oil-resistant silicone coupler incorporating an internal spacer. This arrangement separates the carbon elbow from direct contact with the turbocharger flange, reducing the transfer of heat from the turbocharger assembly into the carbon intake tube. The inlet is supplied in a raw carbon finish without a clear coat, accommodating the elevated operating temperatures near the turbocharger and exhaust manifold.

Eventuri conducted controlled flow-bench comparisons using a SuperFlow SF-1020, measuring an increase of up to 42% in maximum airflow over the factory inlet when configured with the stock turbo flange. Results vary with the selected flange and turbocharger configuration. These measurements describe the inlet's airflow capacity and should not be interpreted as a guaranteed horsepower increase.

The U.S.-market configuration includes the silicone breather components and blanking plug required for the North American 8Y RS3 crankcase ventilation arrangement. Marine-grade stainless steel hose clamps and application-specific couplers complete the installation hardware.

The turbo inlet is designed to integrate with the Eventuri Audi 8Y RS3 Black Carbon Intake System, available separately. Together, the intake and inlet provide a larger, more continuous airflow path from the filter assembly toward the turbocharger compressor.

Turbo Flange Options

A compatible turbo flange is required for installation. The carbon inlet cannot be installed without a flange. Select the correct flange from the product dropdown based on the turbocharger fitted to your vehicle.

• Stock Turbo: EVE-TRB8Y-LHD-STK
• TTE700 / TTE625: EVE-TRB8Y-LHD-TTE
• SRM GTX3582: EVE-TRB8Y-LHD-SRM

Product Details

• Engineered for U.S.-spec Audi 8Y RS3 left-hand-drive models
• Designed for the turbocharged 2.5-liter five-cylinder engine
• High-temperature pre-preg carbon fiber inlet elbow
• 103mm intake-side internal diameter compared with 72mm for the factory inlet
• 74mm outlet diameter compared with 56.4mm for the factory inlet
• Manufacturer-reported flow-bench improvement of 42% over stock with the stock turbo flange
• Continuous internal curvature designed to reduce abrupt airflow transitions
• Nominal 2mm carbon fiber wall thickness
• Heat-reflective protection where the inlet passes over the exhaust manifold
• CNC-machined, anodized aluminum turbo flange selected through the product dropdown
• Oil-resistant silicone coupler with integrated thermal spacer
• U.S.-spec silicone breather components and blanking plug
• Marine-grade stainless steel hose clamps
• Raw carbon fiber finish without clear coat
• Compatible flange required for installation