3.5" Exhaust, Will It Work

[7.3early99F550]

Will be pulling the trigger this coming week on a set of stage 1 injectors and a chip for them. Already have on order a G2 w. wheel, turbo rebuild kit (don't believe I need it but getting it in just in case), up pipe gaskets, exhaust manifold gaskets, glows, uvch's, gauges.

The after turbo exhaust is factory 3.5" no muffler but it ends just behind the passenger door out the side.

My question for the exhaust gurus is, Do I need to size it up for the larger injectors, even when it is so short a distance from the turbo?

I understand the basics of fluid dynamics (yes air is considered a fluid) and that bigger is better for after a turbo. I just wonder if it is necessary for a larger pipe in my application. I guess the temps will tell too. I don't want to blow the $$$ on something that isn't absolutely necessary.

[Joel]

I would just leave it for now and keep an eye on EGT's

On the other hand, I would absolutely get bellowed up-pipes instead of new gaskets.
Well worth the investment.

[7.3Excursion4x4]

I would save the $$$ and use it for the new set of tires you are going to need after the sticks and chip go in. Watch the EGT's, but I don't think that you will need 4" or 5" exhaust for the 400 HP (give or take) you will get out of the stage 1's.

[7.3early99F550]

Originally Posted by Joel

On the other hand, I would absolutely get bellowed up-pipes instead of new gaskets.

An early 99 cant fit bellowed up pipes if I read correctly on the other threads about them. They only fit 99.5 - 03 models

[Joel]

Oh right

Im sure the gaskets will be fine then