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Old 08-24-2013, 09:37 PM   #423
Scooby Newbie
Member#: 307274
Join Date: Jan 2012
Chapter/Region: International
Location: Jakarta, Indonesia
2012 STI Spec C



Do you have any experience with JDM spec C?

I need an e-tune, spec C is boosting 21 psi and agressive timing out of factory.

It feels good stock, however it needs RON100 to run (not US octane). Is it possible to make it run better on RON95 (91 US oct)?

Sounds like it needs a de-tune.
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