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Hey I purchased an IDP extreme street tune a while back. I've been getting 10mpg, it smokes like crazy, and the turbo lag is ridiculous. I understand that the fuel milage will be junk if you romp around in it but I wouldnt think that bad. Plus the turbo only boosts to 20psi. If im running unloaded up the mountain it will hit 30psi(ish) or for some reason faster than 90 miles an hour and it will also exceed 20psi

Heres my truck details: 2006 F250 Lariat, ARP headstuds w/ oem headgasket, turbo cleaned 10k miles ago, EGR delete w/ new uppipe, and gauges. EGTs have stayed the same 750ish cruising on the highway and can hit 1200+ if i lay on it for a while. What do you think my problem is?
 
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