Twins charge p[ipe size?

[millerlhc]

???????? 3 1/2 or 4 ? Is there any different in spooling?:what:

 

[JFlagg]

What size is your intercooler inlet? Mine is 3.5"... so I don't see the need to go bigger since it will just choke down again.

 

[SPEEDSHIFT]

Most turbos use a 4" inlet. Measure what you have to be certain...

 

[Diesel Freak]

on a s400, K31 and GT42 it is easier to use a 3.5" aluminum pipe. ATP Turbo sells an adapter to weld to.

3.5" V-Band Flange and Clamp Set - GT42, R/RS compressor Outlet : atpturbo.com