I was wondering what the ups and downs would be with using a RE/REW intake manifold on my S4 13B-T, I have heard of people using them with mods but i am not sure how hard it is to do and if it is worth it.

 

you could probably take 10 minutes to read a few of the already thoroughly discussed threads on this topic and have all your questions answered relatively easily.

 

are any threads better then the other

 

I'm guessing you are only talking about using the UIM only?? Neither the RE LIM or FD LIM will bolt up to a TII block..There is no current offering to adapt the LIM to a TII block.

In regards to the UIM, FD can be done but you need the spacer adapter and need to switch over to an S5 TII LIM. There is no adapter to get the RE LIM onto a S4/S5 TII LIM

 

Here is the cliff notes version. Using the fd the upper along with the fd the throttle body grants you very minimal bonuses its more for looks then any thing

 

Schaft that is the kinda answer I was looking for thanks.

 

FD TPS is a lot more reliable than either FC design though.

 

^^But will the FD TPS talk to the S4 ECU?

 

I do have a Rtek