Hi there

My car currently has the exhaust manifolds, PSE, centre radiator and under trays.

I now want to do the intake manifolds, plenum and throttle body, I shall keep my stock air box for now and fabricate a hose to connect it to the larger throttle body if the stock hose is not big enough.

Why am I doing it this way? Well the carbon air box cost circa $3500 and will not yield a lot more horsepower over the stock air box with BMC filter. Whereas the polished X51 intake manifolds, X51 plenum and X51 throttle body will yield greater power gains and cost about $2000 though it will take longer to install.

Question is I know I need the following parts:-
Intake Manifolds: #997.110.115.40*X2
Throttle Body: #997.605.116.00
Distributor Pipe:*997.110.416.40

I am sure there be other parts too, compulsory ones such as gaskets for the intake manifolds and throttle body as old ones will be perished and might not fit.

But will I need anything else? I've heard tank vent lines mentioned and rubber sleeves etc.

Just need to ensure I don't order stuff I already have or can use but at the same time not be short.

So has anyone done this, converting to X51, can you help with the above please?