I was looking at the Southbnd clutches. I wanted to get the lightend flywheel and was not sure if their clutch setup would work well with it. My 2003 540i M sport had the Dinan clutch kit and lightened flywheeel and was perfect in that car. So I was curious as to what makes the Dinan clutch kit even worth the price? My M5 has headers, Tune, Dinan diff and Intake. I would like to thee clutch to be stronger than the OEM one but still very streetable for DD or if my wife decides to drive it she does not have to work at it to make the gear.