Originally Posted by MConte05
So I got my v8 STI EJ207 in my car last night. And started piecing together the other bits. Went to bolt on an HKS catted twinscroll downpipe I got for cheap. Turns out that doesn't fit at all with a 5-speed gearbox.
When trying to tighten the DP to the turbo, it lifts the DP up to the point it is jammed hard against the tranny crossmember in the rear. And then cannot tighten the turbo down enough. Will be trying to solve that issue soon...
Not sure the gear box is the issue, the shape of the downpipe between jdm and usdm is identical as far as bends and the way it sits, so in theory it should fit with both gear boxes.
do you have a link to the downpipe in question? Are you sure the turbo is seated properly with the uppipe or uppipe with header, as an improper angle in those locations can cause your issues.