The optimum word being "suspect".
He could have 3000bhp, it doesn't make a difference to the fact if he's doing average speeds, on average roads, OEM pads are more than up to the job. IF, however, as you say...he ends up deciding he does fancy a decent hoon, then DS2500's may be an option if he feels the are worth the extra.
He asked for options and opinions. People gave options and opinions. You gave your opinion, made it sound like fact, then cried when you got shot down and proven wrong...just like always. There are at least two people on this thread who have had OEM pads, AND DS2500's. Both of them are saying the DS2500's aren't as good when cold as the OEM pads. Its hardly rocket science to understand that. Why don't you go and do the test, and post up the results. Then you'll see yourself.
...and while you're at it, fit racing slicks to your car. They offer far improved grip over standard tyres