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Old 04-03-2013, 12:10 PM   #7
Scooby Newbie
Member#: 349396
Join Date: Mar 2013
2013 Wrx Sti hatch
Plasma blue pearl


Probably a heat shield as the rpm's go up when the compressor kicks on. I would check the exhaust first.
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Ranchrex86 is offline   Reply With Quote