[Phoenix7]

Originally Posted by Boostmaniac

The injectors for late model S4 TII's and S5's are identical impedance and size wise. Like stated above, you need the S5 LIM for the FD UIM conversion, but I am not sure why you want to make it harder just yet. This is something I would personally save for a weekend of fabrication.

Anyone remember what the Vin cut-off was on the low/high impedance injectors?

Originally Posted by djmtsu

The FD UIM is really just a looks thing. There has been zero proof that it give any HP increase. However, with it on you can reach all the injectors and the oil injectors and lines without removing the manifolds!

that should be a plus for a bunch of people but I don't like the greddy elbow on the FD, seems like too sharp of a bend right at the TB but it's not that much different than the FC one.

Originally Posted by Max777

I have a question: IF you run the excessive FD lower manifold, that WILL bolt up to the upper one 100%, but what about the 13BT engine? IS the lower mani mounting different on them?

here's a link: http://www.pineappleracing.com/index...PROD&ProdID=25

That's a nice looking manifold but I don't think you can use it with the FC, th ports don't match. You may be able to port match but I don't hear of this mod too often.