We are on the last semi pport dyno comparisons and then we will start making the molds and goto production of the UIM only. LIM r&d underway now. 

This is a Limited Pre-Order Available at a substantial discount. 

 Investment Cast aluminum upper & lower intake manifolds sets coming soon for both 13BREW FD & S4 13BT FC( can be ported to match s5 13BT plates) .  Both side-ported & semi-pport models( 1 inch I.D.) coming soon. 

One can purchase the UIM, and bolt to the OEM LIM. 

Key features:

• Dyno proven models featuring many variations to achieve best all around performance( not just top end RPM ). 
• 6 injector LIM ( 8 total when oem primaries used )
• All oem emissions removed( for off road use only**)
• Oem s6 FD idle air control motor retained( S4 idle control to be announced, not OEM). 
• Every mating flange O-ringed, zero gaskets
• Pre drilled for GM style air temp sensor ( 3/8" NPT)
• Water/alcohol meth jet bung pre machined 1/8 NPT (1x)
• Turbosmart FPR and Continental Flex fuel sensor direct mount
• Properly clears all of our corresponding Cast FC & FD Turbo System

Will require new intercooler hot side piping, as throttle body position is moved from OEM.  We are working on the OEM style throttle body units compatibility with OEM throttle cable).

S4 FC cars using OEM OMP will require linkage modifications, and will NOT be able to use a top mount( stock location) intercooler. Vmount/FMIC required.  OEM turbo coolant feed port is also removed, no coolant will be flowing through LIM like stock. Coolant feed will have to be pulled from rear iron or water pump housing. 

LIM will NOT work with off the shelf fuel rails, as we have changed the injector positions for optimum spray pattern position.  Fuel rail & LIM will come with plugs for those wanting to run less than 6 injectors. Fuel rail is for 14MM upper and lower o rings only. No press in sleeves required. 

UIM only purchase will bolt to OEM FD lower, or FD Excessive LIM. Xcessive will require porting of UIM to match properly.  S4 FC UIM will made to OEM FC LIM properly.