" Haha, I was waiting for this thread ;-) This car has stock exhaust, stock pulleys, no tricks.
We have a 100% stock, unaltered Mustang. As any car enthusiast knows, people play games with dynos - we don't need to.
Based on our experience this car would probably put down another 10hp or so after being driven a it - exactly where it needs to be.
If I have time I will dig up Akash's sheet and a ESS car that was on the dyno last year. (both had full exhaust and one has meth tho)
I also have our client's E92M3 track car on our Mustang then on a Dynojet (made 379hp! with exhaust and AA tune). That is a shocking difference