ive been looking around craigslist and ebay.i want to replace my stock civic dx cluster with a civic si cluster, how would i go about adjusting the miles, plus or minus to match the cars mileage??not for illegal purposes either.my civic dx has approx 150k miles and its hard to find a si cluster with matching mileage?how would i adjust the mileage, forward or back (depending on what the miles of the cluster i get says)just to keep the cars actual miles still intact.