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Old 02-07-2013, 05:22 PM   #4
E46 Coupe
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Join Date: May 2008
Location: Australia
Posts: 5,262
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Bosch don't actually make a static 4.5 bar reg unit, they have adjustable units, but static units are usually 3.5, 3.8, 4.0, 5.0 in that range.
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