hey as for getting off the needles best way is to use 2 spoons.. i know it sounds crazy but it puts equal lifting pressure on both sides so u don't screw up ur needles. so take 2 spoons (thin) and put the round tips under the black round part of the needle. gently push down the handles of the spoon, GENTLY!!! this will pry up the needle where u can sand away at the back and DO NOT USE NAIL POLISH REMOVER!! no matter how easy u think it will be it make em look like crap. just put the needles back on at normal operating temp. and it should be horizontal on the temp guage like he said and wherever u left ur gas gauge at. i used the rpms guage to set the mph and i was pretty damn close. let ur car fully warm up and take note at where ur car idles. and before u remove ur needles get ur car in a set gear and a set rpm and find out what speed u are at i.e. like in 3rd gear at 3k rpm ur at 45mph. and REMEMBER that. after ur done guage how close u are by what u set earlier. so like say u did 3k rpm in 2nd gear was 30mph use that. i got a question for the guys that did the importintelligence needles, i did mine too but mine don't seem to glow as nice as ur's what did u do after u sanded the needles??/ cause i was thinking of totally sanding the needles and taping off the sides and spray painting them very lightly with a translucent blue?? let me know what u guys did cause they look sweet!!