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Old 12-20-2003, 08:19 PM   #2
Chris N
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Member#: 5322
Join Date: Mar 2001
Chapter/Region: NESIC
Location: Maine
Vehicle:
07im +07Leg+00Forest
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I'm certain alot of the 2.5 impreza stuff will apply to our application. But without tearing into the engine a cold air intake and complete exhaust is about all there is. You may be surprized with what a engine back(headers and everything) exhaust will do.

Once the air flow is improved, going in and out, you might consider a fuel reg. and slightly bigger injectors. More HP= more air in and exiting, and more fuel being burned efficiently.
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