I'm shopping around for a new dual mass flywheel for my 2009 e90 LCI 330d and I've noticed a big variation on prices in accordance to part numbers. The only differing specs on the the flywheels that I've seen for the N57 30 A is clearence angles and side play which is about 1mm difference on each. Now the important question is do clearence angles and side play have any significant importance? There's a £200 price tag difference between the two, which I can not justify paying the higher price if the other flywheel fits with no issues! Thanks in advance!