Ok, a bit of history......
For the past 50K miles I've ran Eric's Innov. Street Aggressive and Street Perform Tunes from 70K to present ~120K.
Somewhere along the way i clogged the Oil Cooler and EGR went bad.
Step 1 ~90K Replaced EGR with Bulletproof delete kit and changed Cooler, lower Degauss Level w Ford Gold. Mild Puking only when ran hard.
Step 2 ~110K Replaced Cooler #2 Added MBRP T-Back, Kitty Del. 4.5" DR Lift 35" Nitto's
Step 3 ~125K installed ScanGauge II learned about deltas and replaced Cooler #3 About this time I had a no start condition so replaced: Hpop, STC and ICP Cleaned Turbo upgraded both lines, installed Blue Spring.
Step 4 Flushed n Flushed VC-9 Restore n Restore + changed over to ELC
Deltas dropped to 6 - 8 Still Puking lightly when driven hard or tuned.
Installed PSI Gauge to find out pressures were 16+ tuned or not.
Step 5 Replaced Cooler #4 due to flushing plugged it up. ARP Studs, OEM Gask. Stand Pipes, Dummy Plugs, 6.4 Banjo's, Dfuser rear fuel hose Warren 155's stock Noz. 2 Rebuilt Heads & Eric's Street Extreme Tune. PSI 3-4 NO PUKING when DRIVEN HARD
Step 6 Next Week...... Durastroke Turbo, Extreme X Tune, Snow Perf. Meth/Water Stg. II
So, in conclusion over the past 4 years i've enjoyed driving a truck that had a minor problem all stemming from a failed EGR Cooler & Oil Cooler, it was mildly tuned and yet never diagnosed correctly as I was told numerous times the HG's were fine.
I have no doubt the truck is the best it's ever been and can't imagine it being even better in 2 weeks.