We've exchange many PM's and I told him to change them out. Thanks for bringing it up in the thread though...it's sometimes overlooked.
Chrome...if you have any questions about getting your truck tuned please let me know (as I told you...both of my 3.5 EB's are tuned). I have all my tuning done by a guy down in FL, Torrie from Unleashed Tuning. Another excellent tune shop is in MI called Livernois Motorsports. Both have a VERY good following and are well known for their tunes. I will tell you right now that if your getting your tune on, have the plugs changed out and regap them down to .030 instead of the .035 of stock. You need to close the gap down because of the boost increase you're going to see. Livernois does not do any data logging but Unleashed does which is one of the reasons I went with Torrie. I don't know if he's doing unlimited tune changes but most places will give you 2-3 different tunes...ex. a 87 octane performance tune, a 93 octane performance tune and a 87 tow/haul tune. Just something to consider before you run out and tune.
Good luck and I think you'll be really surprised by the power increase as well as the bump in MPG that comes along with that (as long as you can keep you foot from turning to lead).