4.0TT Intake Upgrade

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


***Back Order 2-3 weeks***


Third Picture are the short version intakes






  • $895.00
Qty:  
  • Weight
    6 lbs
  • SKU
    000140

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


Both long and short (stock style airbox fitment) are available.


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 plus4 turbos.


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




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Make Model Year Engine
Audi A8 D4 (11-17) 4.0T
Audi RS6 C7 (13-18) 4.0T
Audi RS7 C7 (13-18) 4.0T
Audi S7 C7 (12-18) 4.0T
Audi S6 C7 (12-18) 4.0T

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