they cost me $100.00 and take about 2 to 4 days to get them, thier worth it. really rugged and well insulated design. also make shure you use bosch copper plugs too. not platinum.
good luck,
adam

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87 300E
BLACK GOLD WITH CREAM INTERIOR, SPOILER, AIRDAM
CLEAR MARKERS

87 420SEL
BRONZE WITH CREAM INTERIOR