can i port my intake ? it's a s4 manifold and i keep looking for more info and all i found is about s5!!! i went to the junkyard today and i'm 1/2 way done!!
please i need to know if it is worthy!!! i'm going tomorrow saturda to finish pulling it!!!! thanx for any information!!!!!!!!!!!!!!!!!!!!!!!!!!!!

 

Yes you can, basically you just want to smooth out the transitions between each piece (TB,Plenum,upper and lower) rather than actually make the ports much bigger. Just looks for stuff that looks like it may disturb airflow, and dremmel it off.