My car was fine for about 25k of driving after the remap, but it went last summer at about 58k total mileage.
Rarely do any fast launches, but it went after a rare attempt by me to drive quickly down some country roads which involved a few stops at junctions & hence quick pull aways.
The torque output you get with a remap will vary greatly depending upon which company does the work, and if you have any other mods. I've got an MTM one on mine, which is known for giving a strong torque curve. I think anything from about 270lb/ft to 315lb/ft is what you can get. With the standard clutch 'good' for somewhere around the 300 lb/ft mark, as Ed says, most people get away with it following a remap.