DSA works by cutting the amount of torque that is sent to the wheels. This in turn is done by cutting the amount of fuel injected in 16 stages, until the ABS sensors don't detect any difference in rotation of the front wheels.
Personally, I've found DSA to work predominantly on the type of car you order. It works quite well in a 1.8 or 2.0 litre car but I've had a 2.0T and T4 and its totally useless in those. If traction control is what you're after, then RACELOGIC is what you want (www.racelogic.co.uk). I know someone who has racelogic fitted to his heavily modified T5 and was quite happily driving around on virtually slick tyres (the threads had completely worn off), even in wet weather. That attests to the effectiveness of the system. Its next on my wishlist too.
Personally, I've found DSA to work predominantly on the type of car you order. It works quite well in a 1.8 or 2.0 litre car but I've had a 2.0T and T4 and its totally useless in those. If traction control is what you're after, then RACELOGIC is what you want (www.racelogic.co.uk). I know someone who has racelogic fitted to his heavily modified T5 and was quite happily driving around on virtually slick tyres (the threads had completely worn off), even in wet weather. That attests to the effectiveness of the system. Its next on my wishlist too.
