what size pipes should i use to make my up pipes for the psd turbo?

 

ATS uses 2.25" ID pipe before the turbo which turns into about 2.5" ID for the up pipe after both manifolds come together into the up pipe.

Small pipe diameter keeps the exhaust moving fast so it spools the turbo faster.

 

on the powerchokes it uses two up pipe like the hypermax pulse setup, each pip runs into a different intrince on the exaust housing

 

So you need to run 2.25" ID pipes from each manifold to the turbo exhaust entrance flange.

With the way the manifold pipes clamp on, 2.25" ID pipe is the biggest thing you can get on them anyway.

 

i got some 2'3/8 inch pipe that i will weld to a piece a 2 1/4 pipe that hooks to the manifolds.