Modified Intake Manifold S4 RS4 Hemi

 Send us your stock IM (125$ core charge option available refunded on return of IM) for enlarged plenum and porting work.  We also offer rs4 & hemi throttle body conversions with our own cnc'd flange and ported inlet.  Throttle bodies can be sourced for an additional fee.  Larger throttle body requires RS4 or billet fuel rails.  We have attached performance data for before and after changing throttle body (rs4) and intake manifold plenum size. Logs are on f21 frankenturbo k04 framed turbos at 22psi.  A 50$ surcharge is assessed for dirty/grease covered cores.  Please put in the notes whether you are running 2.7 or 2.8/RS4 heads.  THIS PRODUCT IS FOR OFF ROAD USE ONLY.

If you have a shipping/carrier preference, please let us know.  Please contact us for international orders.