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Old 02-20-2014, 11:38 AM   #19
KillerBMotorsport
NASIOC Vendor
 
Member#: 198281
Join Date: Dec 2008
Chapter/Region: MAIC
Location: Virginia
Vehicle:
2005 WRX/STi
WRB of course

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Stress in the flux/tube can cause the appearance of crazing (top pic) or flaking (bottom pic) typically in a line. Usually, but not always, it's seen at or near the tube's weld seam. You can see this well in the bottom pic where the weld seam runs up the tube, right under the area circled. Neither of these examples are a crack... yet.
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