4" Down pipe

[06F250powerstroke]

At what point would it be benifical would it make more lag or less ?

[guntersxr]

ill let you know in a few days, mines is about to go on.

[POWERED SPARKLESS]

Think the only benifit is more area to flow which lowers EGT's.

[SuperdutyKing]

I have one on mine and love it. But i also have an SCT too. So i can't really tell any lag but thats just me.

[Farmboy444]

Ive been told the diff is very little, but never drove a 6.0

[fordfan30]

I have run stock, 3.5,and 4 and couldnt tell much if any difference between them.

[Gator0175]

Originally Posted by fordfan30

I have run stock, 3.5,and 4 and couldnt tell much if any difference between them.

How do you like your exhaust? I'm getting one in the very near future but I haven't decided on the 4 or 5 inch. I'm gettin 4 inch downpipe, it's gonna be straight piped, with a big tip.

[Abrannan19]

Originally Posted by Farmboy444

Ive been told the diff is very little, but never drove a 6.0

Originally Posted by fordfan30

I have run stock, 3.5,and 4 and couldnt tell much if any difference between them.

you are right, there will be very little difference from a 3.5" to a 4" maybe 50* if that and you wont even see that on the pyro gauge.

[97 golden stroker]

when me and my dad put the 4in dp in my dads truck it drop egts to a safe level when towing a 12k 5er. Without a load hard to tell the diff.

[mikeproc]

i went from a stock dp to a 4in on my 6.0 and it dropped the egts slightly, only really noticeable when pulling