TAG Motorsports is pleased to offer the Eventuri Carbon Fiber Intake System for 4.0T-equipped Audi RS Q8 / SQ8 / SQ7, Lamborghini Urus, Porsche Cayenne Turbo / Turbo GT / GTS, and Bentley Bentayga V8 models.

Performance Gain Stock Map: 14-20hp, 17-21ft-lb
Performance Gain Stage 1 Map*: 25-28hp, 20-23ft-lb

*Gains measured can vary with different ECU tunes.

Our 4.0TFSI V8 EA825 intake is a ground-up redesign and optimization of the entire air inlet track. Every component including the lid has been developed to allow the V8 twin turbos to pull in air with less drag resulting in industry-leading performance gains. The stock airbox lid itself creates a restriction on the size of the flow collector which feeds the inlets from the filters. So we increased the height of the central section of the lid to allow for a larger flow collector and larger cone filters to be used. This removes the inherent restriction and sets our intake apart from the rest of the field who by utilizing the stock lid must also use a restricted collector and filtration media. The turbo inlets are up to 43% larger in cross-sectional area than stock and are designed with an advanced dimpled inner surface to reduce frictional losses between the flow and the wall boundary. By allowing a “cushion” of air at the wall surface, airflow is able to move through the inlets at higher flow rates with reduced pressure loss. This allows the turbos to draw air with less resistance and therefore reduce the wastegate duty cycle resulting in higher overall performance.

The Eventuri 4.0TFSI V8 intake system consists of a number of components engineered to perform a specific purpose and fabricated to the highest of standards. We use 100% pre-preg carbon fiber with no fibreglass which means we can achieve a smooth internal surface to maintain smoother airflow. 

2025+ Model Update

With the release of the 2025+ Porsche Cayenne Turbo S, GT, and GTS, Porsche introduced updates to the turbo configuration—most notably, the addition of electronic wastegates. These changes rendered the existing 2019–2024 Eventuri intake incompatible with the newer models. Recognizing this early, IND secured a 2025+ Cayenne Turbo for intake development.

Working directly with Bilal and the Eventuri team in the UK, we helped facilitate a full 3D scan of the updated engine bay. Eventuri quickly produced 3D-printed inlets for preliminary fitment testing, which we installed and verified in-house. With successful test results and feedback relayed, Eventuri finalized a new production-ready intake system designed specifically for the 2025+ models. This is the kind of collaboration that sets our partnerships apart—and ensures that new platforms are supported quickly and correctly.

Eventuri 4.0TFSI V8 EA825 intake has now been updated to fit the 2025 facelift Cayenne Turbo variants. Every component including the lid has been developed to allow the V8 twin turbos to pull in air with less drag resulting in industry leading performance gains.

The stock airbox lid itself creates a restriction on the size of the flow collector which feeds the inlets from the filters. So we increased the height of the central section of the lid to allow for a larger flow collector and larger cone filters to be used. This removes the inherent restriction and sets our intake apart from the rest of the field who by utilising the stock lid must also use a restricted collector and filtration media.

The turbo inlets are up to 43% larger in cross sectional area than stock and are designed for maximum volume. The extra volume enables the turbos to respond faster resulting in a noticeable improvement in throttle response.

Note: Please Select Your model year regardless of which Make/Model you have and we will be able to confirm which version of the intake you need.

Each intake system consists of:
- Enlarged Carbon Fiber AIrbox Lid
- Carbon Fiber Flow Collector
- 2 Thermoplastic Turbo Inlets with Dimpled Inner Surface
- 2 x Bespoke High Flow Dry Cone Filters
- Custom Flexible Hoses
- CNC Machined Breather Ports and Reinforcement Rings

Dyno Testing

This intake has been independently dyno tested. Tests were done back to back against the stock airbox and several runs were taken with each configuration. The dyno results show a consistent gain throughout the RPM range which can be attributed to the turbos reaching peak boost earlier and with a lower wastegate duty cycle due to the higher efficiency of the intake system.

(In the Photos Above) The first graph shows the results on a completely stock vehicle with only the intake being changed between runs. The second graph shows an RSQ8 which had a stage 1 tune and drop in filter as the baseline run. Then the intake was changed leaving the tune as it was. The performance gains on both vehicles translates on the road to increased part throttle and full throttle response with the car pulling much more eagerly to the redline.

Fitment: 

- 2020+ Audi RS Q8 4.0T (4M)

- 2020+ Audi SQ8 4.0T (4M)

- 2020+ Audi SQ7 4.0T (4M)

- Bentley Bentayga V8 models (all)

- 2019+ Lamborghini Urus

- 2022+ Lamborghini Urus S

- 2022+ Lamborghini Urus Performante

- 2019-24 Porsche Cayenne Turbo

- 2022-24 Porsche Cayenne Turbo GT

- 2020-24 Porsche Cayenne Turbo S E-Hybrid

- 2021-24 Porsche Cayenne GTS

- 2025+ Porsche Cayenne S

- 2025+ Porsche Cayenne GTS

- 2025+ Porsche Cayenne Turbo E-Hybrid

- 2025+ Porsche Cayenne Turbo GT

SKU: EVE-4V8TT-CF-INT, EVE-FLV8TT-CF-INT

About TAG:

TAG Motorsports is proud to be an Eventuri dealer, selling to customers worldwide.