Alright just back from another bout of measuring. The 3000 pipe at narrow end (including the bead at lip) is 2.25in. At the tb end it is 2.75in EXCLUDING the bead, which is prob why the dm 2.75 coupler is really tight.
The pipes from the turbo to IC: pipe inside diam is slightly more than 2in. ranging from exactly 2in. to no more than 2 1/8in.
From the IC to the plastic hardpipe, it is 2 in at the IC and 2.25 at hardpipe and 2.25 all the way to 3000 pipe. Again these are all inside diameter's of the pipes.
So now that THAT is established (and it makes sense to me, correct me if I'm wrong, but a gradual increase of pipe diameter from turbo to intake manifold is perhaps a good thing? that Toyota did on purpose?), let's talk clamp sizes
Assuming clamp sizes are designated by INSIDE pipe diameter (which is what I am seeing off of driftmotion) we have 5 2.25in. clamps and 5 2in. clamps (4 uppers + 1 from hardpipe to IC)(4 lowers + 1 IC to hardpipe). *sigh finally I think we have arrived at a solid conclusion
---------- Post added at 12:39 PM ---------- Previous post was at 12:28 PM ----------
Oh yeah and the accordion hose is 3in at intake and 2.75in at turbo
someone correct me if I'm wrong