Re: Mid-Engine Yaris w/ 3SGTE!
Here is interesting info on the 3S-GTE intake manifold:
"On the first two generations the intake manifold has 8 independent ports and benefits from the inertia build up to improve engine torque at low and medium speeds. Due to the design of the intake manifold, cylinder number 3 runs lean under normal operation. Various aftermarket solutions exist all of which require replacing the intake headers or manifold. The first two generations of 3S-GTE engines are equipped with TVIS. The third generation uses a normal 4-runner intake manifold."