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Dog-faced pony soldier
Join Date: Feb 2004
Location: A Rock Surrounded by a Whole lot of Water
Posts: 34,187
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True on the head differences. Actually n/a heads with the sodium-filled 951 exhaust valves are preferred by a lot of tuners since the exhaust ports can be enlarged on those. Not so with the ceramic-lined 951 head ones.
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A car, a 911, a motorbike and a few surfboards
Black Cars Matter
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