4" down pipe

[NoLimits]

Does any one have one and how hard wasi it to make it fit?

[Gruss]

I would think you would need a body lift to get a 4" down pipe to fit in a OBS. 3 is tight enough. I've never seen a 4" for a OBS offered

[NoLimits]

I was thinking about getting one for a superduty and making work when I get my new turbo. I have thought about moving the egine forward but not sure if that would do it without messing to much up.

[Stroked95]

Other than you want it, you really don't need it. 3in is big enough for a downpipe.

[NoLimits]

Originally Posted by Stroked95

Other than you want it, you really don't need it. 3in is big enough for a downpipe.

not for a Borg Warner s366

[zsnider777]

I replaced the stock 3" with a 3.5" and it fit really tight I even had to dent it to keep it from hiting the right front leaf spring this is on a 2004 with a 6.O L

[Dirk]

Originally Posted by Stroked95

Other than you want it, you really don't need it. 3in is big enough for a downpipe.

Originally Posted by NoLimits

not for a Borg Warner s366

3.5in downpipe will support over 700hp on the powerstroke.

[NoLimits]

I'm going to hyjack my own thread a little bit.

Will 230cc hybrid handle the s366? what kind of power will that kind of steup with the right mods make. I want to pull it but my options are a 62mm inducer for the workhorse class or a 66mm inducer for the street comp class.

what do you guys think?

[limitcero]

I have a true 4" turbo back exhaust on my 96, i had to bend the cab a little but i thought it was pretty easy, dont know why everybody thinks its impossible, i didnt dent the tube or anything, i took a 4" 90 degree elbow out of the back piece of a banks exhaust (since i didnt need it becuz of the stacks) and then used flexible tubing for the rest of the downpipe one problem i have is that the truck vibrates a little bit in the cab at high rpms becuz its so tight it hits the cab a bit but got used to it right away

[ktfjammer]

Are you folks saying that a 4" down tube will not fit without modification? I ordered a
4" turbo back mbrp exhaust with 5"ss tip.

99 F350 Superduty 7.3L Powerstroke diesel AFE stage II cold air intake (on order) 4" turbo back exhaust with 4" down tube and 5" SS tip.