Pre Folded Yoshifab Aluminum Intake Plenum
This is the intake plenum that we use on our custom b234 intake manifolds. We also use them on many other oddball projects around the shop. It has a tapered design and has a nice volume for a high powered 2.0-2.3L 4 cylinder engine.
It is designed to minimize the amount of weld that is under stress. I have never had one of these fail in the ~10 or so years I have been making them in this design style.
This is not for the shade tree mechanic, you must be able to weld aluminum, you must be able to cut and fit things. We offer no tech support for this, it is assumed you know how to make things work if you buy this.