Well here is why I say that:
1) Most stock SVTs dyno in the 165ish range. A cat back shouldnt have you too far away from that.
2) Mustang dynos read lower compared to Dynojet (more of a standard around here)
3) Your HP seems too high.
So with that I say its corrected because 175whp on a Mustang dyno would take a lot more than a catback. Also, trying to correct HP numbers across dynos is funky, and shouldnt be done because their is no standard, its just close guesses to what the conversion might be. I think they might have skewed your numbers in trying to give you HP numbers to compare to DynoJet numbers. Either you have a freak or the numbers got skewed somehow.
FWIW, my SVT with intake, headers, catback, etc. (no tuning) put down 175whp on a DynoJet so if you can match that with just a catback, well, I would cry.
And sorry if thats a crappy explanation, Im unable to type much right now b/c my fingers are still numb from having some skin removed from my hand this morning.
