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I've got a B6DE cylinder head with intake manifold on my B6T bottom end in my Festiva and I need to find another intake manifold for a few reasons. I'm going with a TEC standalone, the car is turbocharged so the VICS system will be redundent, and the manifold is too big and too close to the firewall. Are there any other manifold that fit right on? I know the B6T manifold has a much different flange, and its centre inlet, so that's out of the question. But what about the Miata intake manifold? Does it use the B6DE style flange and injector mount (or lack of) or does it use the B6T flange and manifold mounted injectors?

Are there any other manifolds that fit, other then the Miata manifold? How about the manifolds from the Z-series engines?

Thanks for the help!

Well to give you the short awnser NO

and the long one;

from what i understand is the Miata one will fit but obvously the TB will be on the opposite side (i dont know this for sure). other than that your out of luck unless you make your own. if you can weld at all its not too hard to make a sheet metal intake mani. all the other mani's i have found that will fit the DE all have the vics, even the JDM mani's do. you might be able to mod a BPT mani to fit, by cutting off the flange and having someone that can weld aluminum weld on a DE manifold.

A custom fab job is likly goig to be your best option although there is a few options that I conidered looking into when we had a simliar swap into our festiva from a while ago as well.

The two things we wanted to check was a probe 2.0 intake and weather it would yeild and benefit or even if it bolts up. I had always wanted to check this after finding out the 2.0 header worked out.

There is still another more proabable option to look into though. Later protege models (not sure of year range think its like 2000 till end of the line I really dont know) had a 1.6L motor that has drastic simlaties to the Mx-3 motor. The manifold is not a VICS equiped manifold, and the intake looks as if it could bolt up. You can easily confirm this by compairing the intake manifold gaskets or by trying to find a cheap one in a junkyard.

The gaskets can reviel a lot but having the actual manifold to compair it will answer more questions on how well the ports line up.