hey i was wondering what all parts that i need to put a fd intake manifold (upper, lower, both) and throttle body (if needed) on a series 4. thanks.

 

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Been covered several times. Your not going to make a s4 manifold work without a lot of extra work, you'll need a s5 lower intake and s6 upper manifold, throttle body, TPS, and TB elbow and either port match the runners and bolt holes or buy an adaptor. If your planning on doing this with a stock ecu forget it even though a couple people have done it successfuly (on a seires 5 engine) using a stock ecu will be out of tune, so any benefits from using the FD intake will be negated.

~Mike.........