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Old 03-09-2013, 06:12 PM   #24
Jeffman44
Scooby Newbie
 
Member#: 239072
Join Date: Feb 2010
Chapter/Region: RMIC
Location: Castle Rock, CO
Vehicle:
2005 WRX Wagon
white

Default

Should be running colder plugs if you.aren't already. The std Heat range will get really hot at full 5th gear load on a long pull. Hott enough to cause pre igniton - misfire.
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