2.5-Inch High-Flow Intake Inlet Upgrade Kit

The Silly Rabbit Motorsports High-Flow Long Intake Inlet Upgrade is engineered for the Audi 4.0T TFSI platform, specifically targeting the S6, S7, RS6, and RS7 models. This system boasts the largest intake runners available for the 4.0tt platform, with true 2.5-inch tubing extending directly to the turbocharger. The design results in significantly less inlet depression compared to stock, leading to an estimated free 3-4 psi increase on the top end and consistent 30-40hp gains at redline. Construction involves 5-axis machined inlet snouts expertly welded to mandrel-bent tubing, all specifically crafted for this application. The kit comes complete with a hardware installation kit and two genuine K&N filters. Please note that due to high demand, a 3-4 week lead time is expected from the date of purchase. Installation instructions and a DIY guide are available. This product page is for the long pipe version, which is intended for use without the stock airbox. Importantly, this intake upgrade does NOT fit the D4 S8 model.