Thread: 350 headers on a 455?
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Old 02-05-2008, 01:06 AM   #3 (permalink)
coopsie442
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Join Date: Jan 2008
Posts: 15
oh yah, well i just wanted to know because i heard you should break a motor in with normal black headers on before putting on ceramic headers, because i herd they turn different colors and crap like that...?
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