Sorry but your not going to get a 100hp with a tune on your car with those mods, that would be sweet though. A canned tune will probably net you around 5hp. A dyno tune may get you around 10-15hp depending on who tunes your car. But like others said, diesels benefit greatly from these tuners as I've heard some gain 100+hp and 200+tq. This past weekend I saw a 05+ mustang get tuned and base lined at 314hp and at the end of the day he left with 360hp. The guy who tuned his car is one of the best around. Needless to say, that guy left with one big smile on his face

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2003 Mustang GT Fobra, Sonic Blue 4R70W
262rwhp/280rwtq - Mods in profile
Vortech coming soon.....
Daily Driver
2001 Mustang V6, Oxford White 4R70W
Mods in profile