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Old 02-05-2013, 02:09 PM   #22
Scooby Guru
Member#: 71875
Join Date: Oct 2004
Location: Montana

670 and 770 are the same thickness and construction, but the 670 is specifically for the 07 sti and then the 770 is on the 08+ and new n/a 2.5s. The difference is the cutouts for the cooling passages in the head. I think I have pictures of everything around somewhere.
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Last edited by jamal; 02-05-2013 at 03:05 PM.
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