Running an FU without an exhaust upgrade

[thollis]

Hey Guys I'm looking at getting an FU chip only question is I haven't upgraded to a 4 inch exhaust yet. It is in the plans but can't buy it all at once. I have installed all the guages (EGT, Trans Temp, Boost) will I be ok just going with the chip for a while as long as I keep an eye on my EGT's I was figureing I would just run the low hp tunes such as 20 hp tow 60 daily driver until I do the exhaust.

Any experience or reccomdations running without and upgraded exhaust

02 F350 Crew cab 7.3L