Another CHEAP option for EGR delete is 35mm freeze plugs, remove cooler, pound them into both sides, throw on a weld for extra security if desired, re-install cooler. Just make sure you get a new lenght of heater hose and clamps, that OEM stub piece and clamps are a joke. I bought my delete on Ebay for $125 and made sure the coolant re-route tube and EGR cap were welded together. Oh yeah, expect 12~16 hrs to delete EGR cooler. Oh yeah, don't sweat the EGR valve, the EGR cooler is the problem, I left mine in and hooked up, no issues.

What Edge, Scan Guage and Bully Dog Watch Dog don't tell you up front is that they DO NOT include an EGT probe. Cha-ching! I just bought a 2 5/8" Auto Meter EGT for $145 from Summit Racing, WITH a probe. The 2 1/16" will fit in pillar pod. Anyway, Edge wants $100 for non expandable EGT probe, $130 for expandable (if you want a back up camera or the other things a CTS can do. Bully Dog wants $150 for an EGT probe that can monitor 2 EGT sources (but they only give you supplies for one). I figure with the EGT gauge on the dash, it will free up a spot on whatever OBD II monitor I choose.

I don't need all of the 1/4 mile timers, mileage coaches (I'm on 35s what mileage!?!), etc these things offer, therefore, I'm thinking at a buck fifty, a Scan Gauge II is going into my truck.

Oh yeah, l wasn't impressed with leveling kits, especially the add-a-leaf from Rough Country that I had, it wore against the main leafs in a bad way. Point is, 285s on an 8 (or 10 like I did) fit nice without lifting. 35s, just get a 4~6 inch lift and some 10" wheels. It's easier. Resist the Dark Side, don't stack blocks. I don't like blocks, but if you're going to use them be smart and use a solid ONE PIECE block for your lift. I've seen stacked blocks spit out, it does all kinds of cool stuff to fix later.

The advantage to the scangauge2 is the vast amount of information it can get from the truck. It can monitor alot of the existing sensors.
You would need those pillar gauges and some scanning software to get what that little thing can do. Scangauge costs about $165, that is only the cost of just one gauge.
You should have a fuel pressure gauge (need to add since there is no fuel pressure sensor on the truck), and if you want to fill out your pillar set, a pyrometer and a boost gauge.

I planned on getting the complete spring pack with shocks from rough country vs. the add a leaf. I think my suspension is starting to go in the front anyways so I was going to replace it all and through an adjustable track bar and steering stabalizer while I'm at it. It was all in all like 5-600.. Pricey, but would feel safer with that vs an add a leaf...