It might be that the TB is a couple of mm smaller, but it seems like the difference is greater than a couple mm at the TB. Here's a pic, A is the breather hose, B is where it's supposed to attach, the difference is almost a width of the hose. This difference is also noticable in where the intake is supposed to bolt down.Originally posted by BlasTech
Isnt the base RSX TB like a couple of millimeters smaller than the Si/Type-S? That could be the issue.
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