OEMedUP

jw.. does anybody either remember the post that i saw in here on how to change the milage on a tach? or know how to exactly w/ perhaps some pics and ish.. i was emailed an offer to buy an si cluster soo i need to milage match it but it only has 17 im a stock d series eg w/ passed 100k.. thanks..
( trial user might recieve some emails from me)!