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Need a front o2 sensor

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Hey guys where is the best place to buy a front oxygen sensor for a 2002 Legacy GT, Standard Trans..Also do you guys have the exact part number?My cousin is a Subaru Guru so I think we could install it ourselves..Do you guys know what tools we'll need or tips??Thanks!!!
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O2 sensor socket, would be handy to remove the old one, maybe a small propane torch to heat the pipe.


Install the new one you got from a auto parts store with anti-seize compound.

305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD).  CHECK your oil, these cars use it.


Engine Build - Click Here

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