there are way too many variables that can affect the results so you will get many different answers. some people have different driving habits, so they will see different results. For me personally i unplugged my EGR (04) and never really noticed much difference in power, i drive with a lead foot so it's hard for me to get MPG results, i'm usually in the neighborhood of 10MPG no matter what i do.
you cannot compare gassers to diesels either, of course a huge open exhaust will lose some low end torque on a gasser, but a turbo diesel does not need any backpressure after the turbo itself. chip ? again gassers are different, the cool thing about diesel performance is that the more HP you gain, you will usually see a RISE in MPG, not so true with gassers. The reason most people don't realize this is because with their newfound power or exhaust note they tend to be a little harder on the go pedal and that's why they're not seeing the increased fuel mileage right away.. everyone is different, if my ol' lady was driving my truck every day it would probably get 16mpg, but i drive different. also there are subtle changes in turbo specs and PCM programming between the different years, so unfortunately there is no black and white answer to your questions..
try it , if you dont like it then go back ... only way to know is to do it.

 

dude.. why the heck do you keep bringing up your gasser ??? seriously it has NOTHING to do with these conversations...do you want to discuss the 6.0 or not ?? do you have a tuner now ?? list all your mods so we know how to answer your questions with some details...
removing the cat has NO bad effect on the turbo, quite the opposite especially if you are tuned. Tuner will blow head gasket ?? stock trucks have been known to blow hg, you either get a good one or not. my truck made over 400RWHP with stock head bolts before i studded it. It is not cost effective for ford to put a large exhaust on from the factory. Ford also has to comply with noise regulations and NVH limits and epa stuff that is the reason they have the exhaust they do. No need to change your trans fluid that often, MerconSP from ford is fully synthetic already and can handle the temps that normal atf cannot. who's doing all these tranny flushes for you ?? are they using genuine merconSP ?? oh you almost the a/m air filters everyone buys..that's because they read magazines and believe everything they see. and they like to buy things that aren't stock. my truck can put 500 HPto the ground, and i have a stock intake on it. we better do research on quick HP fixes ?? there aren't any except tuners , and nothing about my HP is was a quick fix. i've done my research, i've built my motor from the ground up (actually matt built it) i know what's involved. and i have no doubt that my engine will run for many many miles.. there are limits to a stock motor. ford doesnt sell tuners because they already have the 6.0 making 100HP more than IH designed it to. of course you didn't see a change in EGT's w/no muffler because you're not making that much heat anyway.. once you start making real HP you will notice the benefits of less restrictive exhaust. i can easily reach 1500+ degrees w/no cat or muffler and i easily lost 200degrees when my cat disappeared

 

well after getting my truck back...after what i thought was injector problems it turned out to be egr again second one in 30,000 miles does it work to just pull these out and clean them or is unplugging them the better choice

 

Just unplugged mine (late 03). Better starts, faster spool and feels like more power. 50 miles now and no engine light. Thanks guys!

 

Some (well, few) folks clean the EGR Valve as a matter of normal maintenance when they change their oil. Others just pull the plug.

I had great results with my '04 by pulling the plug. But, again, it is a personal choice.

 

did u tell and mpg difference i have heard yes and no

 

I could not isolate and measure enhanced MPG with any degree of accuracy as I also started using a quality fuel conditioner at, or about, the same time. Then sometime after that I loaded up a programmer.

 

i might try it but since its new egr i guess i can wait a lil bit

 

Now is the best time to disable it then. This way you are assured that the gate is completely closed and that is not stuck open, to any degree, due to soot and / or other contaminates.

Remember, be sure your ignition key is in the off position before removing the plug. Again, just to make sure the gate remains closed.

 

wow just did it spool up is a noticeable difference

 

Thank you for the help!

 

yea thanks for the help

 

Before you guys go on unpluging your EGRs, DON'T. If you just unplug it, the exhaust still flows into the cooler and if it gets too hot, the solder will melt down and you will need a new EGR cooler. The better option is to get a sneaky pipe or a block off plate, depending on your truck's year.

 

Mine is an 05
haven't cleaned nor touched the egr
thinking about pulling and cleaning- accoridng to the thread sticky posted above, this is not a difficult job.
I have a parts cleaner and some spare time- i wonder what it will look like at 75K with never cleaning.
most of my miles are highway miles but lately my daughters been driving it. I suspect the short burst and heavy foot may create issues I did not have.
i still want to do the muffler delete but 1 thing at a time

 

Make sure you take some pics and post them in your gallery. I actually need to clean mine as well and I'd like to see how it's done before I go ripping anything out.