4.0TT Intake Upgrade

The largest intake system available for the 4.0tt platform with a true full 2.5" intake runner all the way to the turbo.  Inlet depression on the stock turbo can reach 750mbar while our inlet pipe doesnt drop below 900  resulting in a free 3-4psi on the top end.  30-40hp gains consistently at redline.  5 axis machined inlet snouts are welded to mandrel bent tubing specifically designed for this application.  The kit comes with hardware install kit and 2 genuine k&N filters for long version kit only.  

Dyno validation - https://www.audizine.com/forum/showthread.php/819063-Dyno-test-results-SRM-Luftwaffe-air-intake-system-Graphs-Video-Photos-Audi-S6-S7-4-0T

Installation DIY - https://www.audizine.com/forum/showthread.php/824919-SRM-Intake-install-step-by-step

Fits S6 S7 RS6 RS7 A8 4.0tfsi applications.  This does NOT fit the D4 S8.

Dyno graph is a before and after of swapping stock RS7 Inlets to our inlets on our +4 turbos.

The other chart shows the reduction of turbocharger inlet pressure drop. 65% at stock power/airflow levels and increasingly higher.

*NOTE If purchasing 3.0" Upgrade for A2A only customer must already have A2A installed due to space constraints! These will not fit without our A2A kit!