With the plans to upgrade the turbo, I figured the need to upgrade the downpipe was there. No one that I know of has upgraded to a 3" downpipe from the 2.5" that comes with the SBD Kit. I am interested in how it will affect the spool and possibly power.
Ordered a 5 Bolt to 3" V-Band Bellmouth Adapter plus a few V-Band kits, 3" 90 Degree bends, 3" Straight, and some O2 Bungs. I plan on TIG welding this up, but I have never done TIG before, so this should be interesting. Hopefully I don't screw it up.
