The plastic intake is my issue. I have found out there are 3 different versions used on the 2GR-FE engine. But don't know what the physical differences are. I'm trying to build mine using the most factory parts as possible. i want it to look like it came from the factory that way. Plus make it easier to duplicate. I saw a Youtube video of a home built replacement for the plastic intake out of aluminum. Guy was building a stroker engine to 3.7 litre. Low profile for sure.