UP Pipe Mod

[4linkedford]

I’m going to install my exhaust this weekend 3.5in down pipe to 5in no cat or muffler, while I’m at it I was going to mod the up pipe (EGR mod) I have searched and cant find a definite answer can I remove the up pipe with removing the turbo? I not going to remove the EGR cooler at this time I will do that later. Thanks for the help (I’m a new B to the 6.0)

[redracer62]

you can remove the uppipe with the down pipe remved and the turbo still in there

[DA-HEAT]

x2 what he said

[slomofo]

you don't even have to mod the up pipe. just cut out a piece of sheet metal to fit in the up pipe inside the outer flange that is the same size as the inner flange. it's easy
btw, why is everyone doing 3.5" downpipes. i thought 4" was the thing these days

[Ryan Rønning]

Good luck with the mod!

[Abrannan19]

Originally Posted by slomofo

you don't even have to mod the up pipe. just cut out a piece of sheet metal to fit in the up pipe inside the outer flange that is the same size as the inner flange. it's easy
btw, why is everyone doing 3.5" downpipes. i thought 4" was the thing these days

that way you still get heat transfer over extended drive times plus you create a vortex in the up pipe if you block it off vs. getting rid of the "Y"

the 3.5" DP is more then sufficient on a 6.0 the 4" is overkill plus you normally have bad rattle issues with the 4" DP

[HeavyAssault]

Weld in a piece of 1.5" round steel rod cut about 1/4" thick in the "T", sheet metal isn't going to last with those EGT's.

[4linkedford]

Thanks for the info I can’t wait to hear the turbo spool. By the way I’m going to cut the whole piece off the up pipe and remove the fin.