It wont need much if you use 4mm for the adapter.....it will be as strong as. Actually Dougal on here esuggested not to go overboard on bracing and to allow for thermal expansion/movment, You dont want the bracing so rigid the turbo cant move when its expanding, just a bit of flat bar like suggested might be the goWhile I'm building the td5-t3 adapter obviously It will need to be strong but will It still need extra support to hold everything regarding turbo exhaust system, Intake filters pipe + The engine shaking. I'm guessing I will have to mount very strong supports from the engine block to the turbo housing both sides.