anyone know how big the stock legacy turbo up and down pipes are?

I know for sure that the DP is 2.25" .

I'm not sure about the up-pipe but I think it is around the same.

The up-pipe along with the manifold is noticably narrower in diamater. I would guess 1.5 inches, but thats just a guess.

Mark,

i'll measure sometime early next week. i have the parts waiting at home.

fromwhat i remember, 2.25 each header opening into a 2.25 diameter header. the downpipe is 2.25 as well.

don't remember if i check the up pipe.

Does that mean you received your shipment Box?

mines got alot of carbon inside but its around 1.5'' inside diameter at the entry side ...not sure about the exit side toeards the turbo..i think it gets alittle smaller towards the turbo..

stuff past the dp is 2.5 all the way back to the muffler. but the header is very small.

I would have to agree, my 93 turbo is about 1.5-1.75 on the up-pipe and the downpipe is around 2.25-2.5. I am pretty sure the header pipe and up-pipe are less than 2''