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  1. S

    Tuner in NJ

    Hello I just had a JDM engine installed in my 2003 wrx sedan. Also a new rebuilt tranny. I was told before a tune I need mechanical fixes. I changed my forge mbc and it spiked to 23psi. After adjusting it I can't hit more than 12 psi. 12 psi was the same before the spike and with the...
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