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so if I get GZE pistons, with the stock ECU all I can go would be 5 PSI? how bout if I have a let's say an APEXi SAFC? would that help me go up to 10-12 PSI? thanks!
Also I can get my hands on either APEXi SAFC and/or GREDDY E-manage, which should I go for if I'm shooting for about 10-12 PSI of boost?
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