TGK Motorsport 4.0T Air Intake System - Audi D4 A8/S8

At TGK Motorsport, we believe in pushing the boundaries of innovation, and the Audi 4.0T Air Intake System is no exception. It all starts with our meticulous flow tested design, developed from a 3D scan and transformed into a flawless 3D model. Countless design hours were dedicated to creating an intake system that delivers unrivaled performance.

The highlight of this system is the 4" merged inlet, allowing for easy installation by mounting to both turbos. No more hassle or complicated modifications—simply bolt on and experience the difference.

We started by identifying the shortcomings of the factory intake system to determine which components restricted airflow to the turbos. We then focused on designing the inlet to function without restrictions by utilizing flow data.  We tailored the inlet design to accommodate the CFM required by the 4.0TT engine during Wide Open Throttle, and ultimately created in an intake that sounds and performs better than stock.

Louder Induction Noises! 

Both turbos are pulling through a single filter, creating extremely loud induction noises!

Product Features

• Single inlet design to utilize a single 4" ID air filter
• Improved throttle response
• Improved engine and turbo sounds
• Fit and finish for OEM + look
• Zero interference for spark plug changes
• Provisions added for future product development

Install Instructions