5" turbo back exhaust 7.3

[JohnathenB]

I have an early 99 7.3 and i was wondering if a 5" turbo back exhaust will fit.

[Cledus91]

As long as you get the right size adapter to fit, it would work.

[ekfinn]

Originally Posted by JohnathenB

I have an early 99 7.3 and i was wondering if a 5" turbo back exhaust will fit.

The outlet from the turbo is 3", and not much more will fit from the turbo down the side of the firewall.

Most people who aren't running a stock downpipe have a 3" downpipe that goes to a 4" or 5" pipe... down the truck or up through for a stack, personal preference.

[jdalhaus]

My dad's e99 powerstroke has a 4in turbo back. That 4in downpipe was a snug fit, so thats as big as will fit; you can go 5in from the downpipe back though....sure will sound good!

[JohnathenB]

I decided to got with the 4" down pipe to the 5" exhaust with a black 7" tip

[85_305]

Your going to have a HELL of a time trying to make a 4" dp work. It can happen, but takes a LOT of work.

5" exhaust sounds great.

[BrianH]

99 is the super duty not obs right?

[JohnathenB]

yeah the 99 is the super duty.

[JohnathenB]

this is my truck

[Lyons17r]

May I ask what OBS stands for?? Old Body Style???

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