MYP coil spring spec/ratings

[Robbo_707]

Does anybody know what the 90-7200 spec/rating means in the MYP spring part number description ? Eg part number 1188475-00-D rear coils
Is it thickness and spring rate ( in some measurement ) ?
Other models seem to have lower variation of this like 88-6750 and 81-6850

 

[addictd2wasabi]

I don't have the info but am interested in the specs for the comparison of OEM to aftermarket coilovers like ohlins, Tien etc