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Old 12-20-2012, 08:56 AM   #4
Scooby Specialist
Member#: 327563
Join Date: Jul 2012
Chapter/Region: MWSOC
Location: Cincinnati
2017 WRX


Considering the 48 is so close to the 39 I can't imagine you'd have to do anything but flash a stage 2 for an 04 with the correct injector size. Maybe back down waste gate duty. Go to ROM raider and have a look through the forums.
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